YEAST TRANSCRIPTION FACTORS, DNA-BINDING PROTEINS AND RELATED COMPONENTS
Gene Alternate Gene
Name
Systematic Name Type of Factor
Red: Transcription factors (activators/repressors)
Blue: Basal transcription factors

Black: Related to transcription factors
Functions
Effetcs
DNA-Binding Interactions
Complexes
Features Gene
ABF1 BAF1       OBF1      REB2 YKL112W ARS-binding factor I Activation of DNA-replication and transcriptional regulation of various genes RTCRYNNNNNACG *Req. for RNA polymerase I enhancer function *CHC2-type zinc finger Zn.jpg (575 Byte)
*Polyasparagine stretches
* 202 C-term acid domain req. for activation of ARS function
*Two regions within the essential domain (aa 679-731) able to perform all essential functions in the absence of the other
*Transcription of ABF1 seems to be autoregulated
*Bends DNA at its binding site by about 120 deg
ABF1
ABF2 CDRP1      HIM1 YMR072W Abundant mitochondrial DNA-binding protein . . . 2 HMG-box domains
* Homologous to HMG1 and HMG2
Can introduce DNA bending at particular sites
ABF2
ACE1 CUP2 YGL166W Metallothionein gene activator 1 *Req. for activation of CUP1 transcription at elevated copper concentrations
*Binding reduced Cu (I) ions permits Cup2p to bind to promoters of metallothionein genes
Binds to one site in SOD1 promoter and 4 siites in CUP1 promoter . *Contains a copper-fist domain
*Forms a tetracopper-thiolate cluster in the copper-regulatory domain upon induction
*N-term is cysteine-rich and basic, while C-term is acidic
*Sequence similarity to Mac1p
ACE1
ACE2 . YLR131C Metallothionein gene activator 2 Involved in regulation of basal and induced activity of histidine and adenine biosynthesis genes . . . ACE2
ADA1 SUP110 P1001 GAN1 YPL254W Adenosine deaminase Required for the overall structural integrity of the SAGA complexTFcomplex.jpg (715 Byte) . SAGA transcriptional activator-histone acetyltransferase complexTFcomplex.jpg (715 Byte) . ADA1
ADA2 SWI8 YDR448W Transcription factor . . SAGA transcriptional activator-histone acetyltransferase complex
ADA, histone acetyltransferase A complexTFcomplex.jpg (715 Byte)
. ADA2
ADA3 NGG1 SWI7 YDR176W Transcription factor Genetic interaction with SWI1 . SAGA transcriptional activator-histone acetyltransferase complex
ADA, histone acetyltransferase A complex
TFcomplex.jpg (715 Byte)
. ADA3
ADR1 . YDR216W Alcohol dehydrogenase repressible protein 1
Transcription factor
Transcriptional activator of ADH2 when not phosphorylated GGAGA (22 bp inverted dyad symmetry) . *Two C2H2-type zinc finger domains, each finger folding independently into a beta-beta-alpha structure typical of C2H2 zinc finger domains Zn.jpg (575 Byte)
*Single acidic activation domain (pos. 420-462) fused to the DNA-binding domain is sufficient for all known Adr1p functions
ADR1
AFT1 RCS1 YGL071W Regulatory protein involved in iron uptake *Phosphorylated after shift from glucose to other carbon sources
*Phosphorylation during nutritional shift Snf1p-independent
*Phosphorylation occurs normally during the diauxic shift; not induced by iron starvation
PyPuCACCCPu . *N-term is basic
*Interacts with iron through a histidine-rich region, which might inhibit its ability to activate transcription
*C-term glutamine-rich, may be req. for transactivation functions, essential for expression of the iron transport system
AFT1
ANC1 TFG3 YPL129W TFIIF subunit (transcription initiation factor), 30 kD . . TFIIF subcomplex TFcomplex.jpg (715 Byte) . ANC1
ARGR1 ARG80 YMR042W Arginine Regulatory Protein I . . Component of ARGR transcription regulatory complex (ArgR1p, ArgR2p, ArgR3p, Mcm1p) complex.jpg (710 Byte) *Amino acids 155-177 essential for function
*N-term region (aa 39-53) contains a stretch of acidic amino acids
*C-term 23 amino acids req. for arginine regulation
ARGR1
ARGR2 ARG81 YML099C Arginine Regulatory Protein II . CACCTCTA Component of ARGR transcription regulatory complex (ArgR1p, ArgR2p, ArgR3p, Mcm1p)complex.jpg (710 Byte) Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term region Zn.jpg (575 Byte) ARGR2
ARGR3 IMK ARGRIII ARG82 IPK2 GSL3 YDR173C Inositol polyphosphate multikinase . . Component of ARGR transcription regulatory complex (ArgR1p, ArgR2p, ArgR3p, Mcm1p)complex.jpg (710 Byte) . ARGR3
ARP7 RSC11 SWP61 YPR034W Transcription factor Acts to assist gene-specific activators through chromatin remodeling . Component of SWI/SNF activator and RSC chromatin remodeling complexesTFcomplex.jpg (715 Byte) ATP-binding domain ARP7
ARP9 RSC12 SWP59 YMR033W Transcription factor Acts to assist gene-specific activators through chromatin remodeling . Component of SWI/SNF activator and RSC chromatin remodeling complexesTFcomplex.jpg (715 Byte) ATP-binding domain ARP9
ARR1 YAP8 (ACR1) YPR199C bZIP-type transcription factor Mediates arsenic resistance TTACTAA . *Belongs to the eight-member family of basic leucine zipper (bZIP) proteins: Yap1p, Cad1p, Yap3p, Cin5p, Yap5p, Yap6p, Yap7p, Arr1p
*bZip motif is located in N-term regionZIP.jpg (575 Byte)
ARR1
ASF1 . YJL115W Anti-silencing factor 1 Causes derepression of silent loci when overexpressed . Component of replication-coupling assembly (RCAF) complexcomplex.jpg (710 Byte) . ASF1
ASF2 . YDL197C Anti-silencing factor 2 Causes depression of silent loci when overexpressed . . . ASF2
ASH1 . YKL185W GATA-type transcription factor *Negative regulator of HO expression
*Essential for pseudohyphal growth
. Interaction with Swi5p is req. for HO expression *Zinc finger motif related to GATA transcriptional regulatorsZn.jpg (575 Byte)
*mRNA abundance fluctuates during the cell cycle but peaks in early G1 phase
ASH1
BAS1 CAT8 (DIL1) YMR280C General transcription factor *Mediates regulation of basal and induced activity of histidine and adenine biosynthesis genes
*Req. for derepression of gluconeogenic enzymes
TGACTC . *Zn-finger protein with myb-like DNA-binding motifZn.jpg (575 Byte)
*Major activation domain located between amino acids 400 and 630
BAS1
BAS2 PHO2   GRF10 . See GRF10 . . . . BAS2
BEM1 SRO1 YBR200W Protein required for cell polarization and bud formation * May coordinate MAP kinase cascade activation with cell cycle control
*Might be a component of a pathway for Ste20p-dependent regulation of cytokinesis
. *Associates with Far1p and Ste5p
*Associates with Ste11p, Ste7p, and Fus3p, probably indirectly through their association with Ste5p
*Interacts with C-term 75 amino acid region of Cdc24p
*Two SH3 domains BEM1
BUR6 NCB1 YER159C NC2 (Dr1/Drap1) repressor of class II transcription, alpha subunit . . Binds to TATA-binding protein (TBP1/Spt15p) as a heterodimer with Ncb2p Negative Cofactor B1 BUR6
CAD1 YAP2 YDR423C Transcriptional activator of the bZIP-family *Mediates multidrug resistance
*Transcriptional regulator of Ycf1p
*Not involved in response to superoxide
*Transcriptional activity inhibited by protein kinase A
* Mediates cadmium-induced transcription of AP-1 recognition element (ARE promoter)
*Can suppress yap1 cadmium sensitivity but not yap1 hydrogen peroxide sensitivity
*Does not regulate TRX2, SSA1, GSH1, TPS1, TPS2, or TPS3
TTACTAA . Belongs to the eight-member family of basic leucine zipper (bZIP) proteins: Yap1p, Cad1p, Yap3p, Cin5p, Yap5p, Yap6p, Yap7p, Arr1p ZIP.jpg (575 Byte)
Two short upstream ORFs regulate expression by destabilizing CAD1 mRNA via a UPF1-independent pathway
CAD1
CAF4 . YKR036C Ccr4p associating protein . . . WD (WD-40) repeats WD.jpg (569 Byte) CAF4
CAT8 (MSP8) DIL1 YMR280C Zinc-finger type transcription factor *Required for derepression of gluconeogenic enzymes
Glucose induces dephosphorylation of Cat8p in a Glc7p-independent manner
. Not a component of the complex of proteins that binds to the carbon source-responsive element (CSRE), but positively controls genes for proteins in the complex complex.jpg (710 Byte) *Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term region Zn.jpg (575 Byte)
*Cat8p is probably activated by Snf1p/Snf4p protein kinase
CAT8
CBF1 CPF1 (CBP1) CEP1 CP1 YJR060W Centromere Binding Factor *Req. for chromosome stability, optimal centromere activity and methionine prototrophy
*May be involved in regulating transcription of MET17, MET2, MET3, and SAM2, all of which contain upstream CDE1 sequences
AAWTWARTCACRTGATAWAWWT *Binding to the sequence TCACGTG stabilizes the binding of the Met4p-Met28p-Met31p and Met4p-Met28p-Met32p complexes to the adjacent sequence AAACTGTG
Met4p provides the transcriptional activation function to the Cbf1p-Met4p-Met28p complex complex.jpg (710 Byte)
*Basic-helix-loop-helix (bHLH) DNA-binding protein HLH.jpg (831 Byte)
*No typical transcription activation domain
*Causes bending of DNA
CBF1
CBF5 LUC8 YLR175W Centromere/microtubule binding protein Putative ribosomal RNA pseudouridine synthase, associated with H/ACA class small nucleolar RNAs . . . CBF5
CCL1 . YPR025C TFIIH subunit (transcription initiation factor), cyclinC component . . Component of C-terminal domain (CTD) kinase subcomplex TFIIK (Kin28p and Ccl1p) of TFIIH; required for transcription but missing from repairosome form of TFIIH TFcomplex.jpg (715 Byte) . CCL1
CCR4 FUN27 NUT21 YAL021C Positive and negative transcriptional regulator . . CCR4 transcriptional regulatory complex; Ccr4p-NOT complex TFcomplex.jpg (715 Byte) . CCR4
CDC13 EST4 YDL220C Telomere-binding protein Involved in protection of the telomere and required for access of telomerase to the chromosomal terminus . . . CDC13
CDC36 NOT2 YDL165W Nuclear protein Negatively affects basal transcription from many promoters . CCR4 transcriptional regulatory complex; Ccr4p-NOT complex TFcomplex.jpg (715 Byte) . CDC36
CDC39 NOT1 ROS1 YCR093W Nuclear protein that negatively affects basal transcription from many promoters . . CCR4 transcriptional regulatory complex; Ccr4p-NOT complex TFcomplex.jpg (715 Byte) . CDC39
CHA4 SIL2 SIL3 YLR098C Transcriptional activator of CHA1 . . . Zn[2]-Cys[6] fungal-type binuclear cluster domainZn.jpg (575 Byte) CHA4
CHD1 . YER164W Chromodomain-Helicase-DNA-binding protein . . . . CHD1
CIN5 YAP4 YOR028C bZIP-type transcription factor Involved in salt tolerance TTACTAA . Belongs to the eight-member family of basic leucine zipper (bZIP) proteins: Yap1p, Cad1p, Yap3p, Cin5p, Yap5p, Yap6p, Yap7p, Arr1p ZIP.jpg (575 Byte) CIN5
CKA1 . YIL035C Casein kinase II, catalytic alpha chain . . . . CKA1
CKA2 . YOR061W Casein kinase II alpha' chain . . . . CKA2
CKB1 . YGL019W Casein kinase II, beta subunit . . . . CKB1
CKB2 . YOR039W Casein kinase II beta' chain . . . . CKB2
CMP2 CNA2 YML057W Calcineurin catalytic (A) subunit Protein serine/threonine phosphatase 2B(PP2B), member of the PPP family of protein phosphatases . . . CMP2
CNB1 YCN2 YCNB CRV1 YKL190W Calcineurin regulatory (B) subunit . . . . CNB1
CRZ1 TCN1 YNL027W Calcineurin-dependent transcription factor *Calcineurin-responsive zinc finger protein
*Regulates gene expression downstream of calcineurin in response to multiple environmental signals
. . Two C2H2-type zinc-binding fingers.Zn.jpg (575 Byte) CRZ1
CTK1 SNB32 YKL139W C-terminal domain (CTD) kinase alpha subunit *Cyclin-dependent protein
*Phosphorylates C-terminal domain of RNA polymerase II large subunit
. CTDK I, RNA polymerase C-terminal domain kinase complex; subunit Rpo21pTFcomplex.jpg (715 Byte) . CTK1
CTK2 . YJL006C C-terminal domain (RNA polymerase II CTD) kinase beta subunit Cyclin-related protein
Interacts with the cyclin-dependent protein kinase Ctk1p
. CTDK I, RNA polymerase C-terminal domain kinase complexTFcomplex.jpg (715 Byte) . CTK2
CTK3 . YML112W C-terminal domain (RNA polymerase II CTD) kinase gamma subunit Associates with Ctk1p and Ctk2p . CTDK I, RNA polymerase C-terminal domain kinase complexTFcomplex.jpg (715 Byte) . CTK3
CUP2 ACE1 YGL166W Copper-dependent transcription factor Metallothionein (copper chelatin); identical to Cup1Bp
Responsible for induction of CUP1A, CUP1B, CRS5, and SOD1
. . . CUP2
CUP9 . YPL177C Homeodomain protein Involved in copper homeostasis and in regulation of peptide import Binds to a PTR2 promoter region from -448 to -897 as transcription repressor . Member of PBX family of homeobox proteins CUP9
DAL80 UGA43 YKR034W GATA-type zinc finger protein Transcriptional repressor for allantoin and GABA catabolic genes
*Represses the urea catabolic pathway
*Negatively regulates itself, GZF3, UGA4, DAL7, DUR1,2 and UGA1
Two GATAAG sequences located within 21 bp of each other Dal80p and Gzf3p can form a homodimer or a heterodimer; which one forms determines DNA binding specificity and affinity *C-term domain, containing a leucine zipper motif, is responsible for homomeric interactions and essential for functionZIP.jpg (575 Byte) Zn.jpg (575 Byte) DAL80
DAL81 UGA35
DURL
YIR023W Transcriptional activator for allantoin, GABA and urea catabolic genes . . With Dal82p regulates allophanate-inducible genes Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term regionZn.jpg (575 Byte) DAL81
DAL82 . YNL314W Transcriptional activator for allantoin catabolic genes . . . DNA binding: first 85 residues
Core domain (32 to 152) required for full transcriptional activation
Potential coiled-coil domain (218 to 255) may play a negative role in transcriptional activationZIP.jpg (575 Byte)
DAL82
DST1 PPR2 YSII TFIIS STPalpha YGL043W Transcription elongation factor TFIIS
Strand Transfer Protein
Transcription elongation factor S-II; DNA strand transfer protein catalyzing homologous DNA strand exchange . . . DST1
ECM22 . YLR228C Protein similar to transcription factors . . . Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term regionZn.jpg (575 Byte) ECM22
(EGD1) CST25 YPL037C Nascent polypeptide-associated complex, beta subunit . . . . (EGD1)
(EGD2) . YHR193C Nascent polypeptide-associated complex, alpha subunit . . . . (EGD2)
ELA1 . YNL230C Transcription elongation factor (Elongin A) for RNA Pol II . . Ela1p-Elc1p Contains an F-box domain ELA1
ELC1 . YPL046C Transcription elongation factor (Elongin C) for RNA Pol II . . Ela1p-Elc1p . ELC1
EZL1 . YJL168C Repressor of basal transcription of GAL4 . . . . EZL1
FHL1 . YPR104C Transcriptional activator of the forkhead/HNF3 family . . . Contains a forkhead-associated (FHA) domain FHL1
FKH1 . YIL131C Homolog of Drosophila forkhead protein Involved in transcriptional silencing, cell morphology and cell cycle . . . FKH1
FKH2 . YNL068C Homolog of Drosophila forkhead protein Involved in transcriptional silencing, cell morphology and cell cycle . . . FKH2
FLO8 PHD10 YER108C Transcriptional activator of FLO1 *Req. for pseudohyphal formation in diploids
*Req. for invasive growth and flocculation in haploids
. . . FLO8
FUN16 . YAR003W Protein of unknown function . . . WD (WD-40) repeatWD.jpg (569 Byte) FUN16
FZF1 (SUL1) YGL254W Transcription factor *Involved in sulfite tolerance along with Ssu1p, Grr1p, and Ssu3p
*Acts downstream of GRR1 and upstream of SSU1
. . . FZF1
GAL11 RAR3   SDS4 SPT13 YOL051W Component of RNA polymerase II holoenzyme and Kornberg's mediator complex *Has positive and negative effects on individual genes
*Req. for normal expression of GAL1, GAL7, and GAL10
*Affects phosphorylation state of GAL4p
*Affects expression of MFAPLHA1, A1, A2, and PYK1, as well as Ty-mediated gene expression
. Component of RNA polymerase II holoenzyme and Kornberg's mediator complex TFcomplex.jpg (715 Byte)
*Transcription mediator complex contains Gal11p, Rgr1p, Sin4p, Srb4p, Med1p, Med2p, Pgd1p, Med4p, Med6p, Srb5p, Med7p, Med8p,
*Rox3p, Srb2p, Srb7p, Srb6p
*Mediator complex consists of Gal11p, Sin4p, Rgr1p, Srb2p, Srb4p, Srb5p, Srb6p, Srb7p, Srb8p, Srb9p, Anc1p, Ssn8p, Ssn3p, and other proteins
*64 amino acid domain of poly-glutamine-alanine
*23-amino acid glutamine domain and several shorter polyglutamine domains predicted to form a helix-loop-helix structure
*May stimulate promoter activity by enhancing an association of TFIIE (Tfa1p and Tfa2p) with preinitiation complex in the cell
GAL11
GAL3 SRV1 YDR009W Inducer of galactose pathway Regulatory protein required for rapid induction of galactose pathway . Binds Gal80p . GAL3
GAL4 . YPL248C Transcription factor in expression of galactose-induced genes Gal4p can activate transcription of genes whose promoter is located up to 600 base pairs away from UAS-G binding sites CGG-N11-CCG *GAL4-AH transcription factor binds chromatin after alteration of the nucleosome core by the SWI/SNF complex, and remains bound after detachment of the complex
*Binding occurs independent of galactose, i.e. an example of an activator that can occupy its recognition site without activating transcription.
*In the absence of inducer, Gal80p binds to GAL4 and prevents interaction with other components of transcription machinery.
*Zn[2]-Cys[6] cluster (residues 14-57) contact DNA (crystal structure)Zn.jpg (575 Byte)
*Two helix-turn-helix motifs in the substrate binding domain which pack around the zinc-cysteine cluster
*Transcriptional activating region: two little acidic regions at 148-196 and 768-881 (C-term)
*74 N-term amino acid residues are sufficient to bind Gal4p to the 17-mer UAS-G
*Nuclear transport signal in 74 N-term region
*GAL4 binds as a dimer
GAL4
GAL80 . YML051W Negative regulator in expression of galactose-induced genes . . 1:1 inhibitory complex with Gal4p . GAL80
GAL83 SPM1 YER027C Factor involved in glucose repression . . Interacts with Snf1p and Snf4p . GAL83
GAT1 NIL1 YFL021W GATA zinc finger transcription factor involved in nitrogen regulation . . . . GAT1
GCN4 ARG9 AAS3 YEL009C Protein for general control in response to amino acid or purine starvation
Transcription factor of the bZip type
*Activates transcription of more than 30 genes involved in the biosynthesis of 11 amino acids in response to amino acid starvation or impaired activity of tRNA synthetases ATGAC/GTCAT (AP-1 site) and ATGACTCAT (ATF/CREB site) . *GCN4 binds as a dimer to adjacent half-sites
*Acidic activation domain in the middle region of primary structure has critical hydrophobic residues, especially Tyr and Trp
*Leucine zipper of GCN4 (at extreme C-term portion) contains a basic domain followed by a five-fold leucine repeat:
SSDPAALKRARNTEAARRSRARKLQRMKQ-
LEDKVEELLSKNYHLENEVARLKKLVGER ZIP.jpg (575 Byte)
*GCN4 gene expression is translationally regulated by general control: positively by GCN2 and GCN3, negatively by GCD1
GCN4
GCN5 ADA4 SWI9 YGR252W Histone acetyltransferase . . Component of two nucleosomal histone acetyltransferase complexes: SAGA and ADATFcomplex.jpg (715 Byte) . GCN5
GCR1 (SIT3) LPF10 YPL075W Glycolysis regulatory factor 1 . TTTCAGCTTCCTCTAT
and
CTTCC motif
In the Gcr1p-Gcr2p complex, Gcr1p binds DNA while Gcr2p activates transcriptioncomplex.jpg (710 Byte) *Helix-turn-helix motif in C-term regionHLH.jpg (831 Byte)
*N-term 300 residues essential for transcription activation and in vivo function
*Causes DNA bending
*Protein expressed at low level, very low codon bias index
Activator of glycolytic genes
GCR1
GCR2 . YNL199C Glycolysis regulatory factor 2 . . In the Gcr1p-Gcr2p complex, Gcr1p binds DNA while Gcr2p activates transcriptioncomplex.jpg (710 Byte) Similarity to Gcr1p GCR2
GLN3 . YER040W GATA-type zinc finger transcription factor for positive nitrogen regulation Required for transcription of DAL80, GAT1
Positive regulator of GLT1 (glutamate synthase) and GLN1 (glutamine synthase)
Activates PUT1, PUT2 and other nitrogen metabolizing genes when a good nitrogen source is not available
. . . GLN3
GLO3 . . . . . . . .
GRF1 RAP1 GRC4 (TUF1) YNL216W See RAP1 . . . . GRF1
GRF10 BAS2 PHO2 YDL106C General regulatory factor 10 Regulates basal and induced activity of purin pathway genes GGTAAATTAAGTTAATTAATTG

AAAWKAGTTAATTRAWT

. Homeodomain protein GRF10
GRF2 REB1 (RBP1); QBP YBR049C See REB1 . . . . GRF2
GTS1 LRS1 YGL181W Putative transcription factor of the gcs1p/glo3p/sps18p family . . . *Contains one Glo-type CXXCX16CXXC zinc finger in N-term Zn.jpg (575 Byte)
*Contains a polyglutamine domain in C-term region
*11 gly-ser/thr dimer repeats in the C-term region
GTS1
GZF3 DEH1 NIL2 YJL110C GATA-type zinc finger transcription factor *Involved in nitrogen repression of gat1p-dependent expression
*Possibly functions by preventing activation of transcription by Gat1p
* Negatively regulates expression of some nitrogen catabolic genes (GAP1, DAL80 and UGA4) on repressive nitrogen sources (glutamine, ammonia)
Single GATAAC

(for negative regulation unlike negative regulation by Dal80p, which requires two properly spaced GATAAC sites

*Predicted leucine zipper motif in the C-term region is likely responsible for homodimer formation *Zinc finger domain in N-term region Zn.jpg (575 Byte)possible leucine zipper in C-term regionZIP.jpg (575 Byte)
*Lacks the transcriptional activation region found in positive GATA factors such as Gln3p and Gat1p
GZF3
HAC1 ERN4 IRE15 YFL031W Transcriptional activator in the unfolded protein response pathway *Req. to protect cells from stress in the endoplasmic reticulum
*Involved in KAR2 induction via Ire1p
Activates gene expression by direct binding to unfolded protein response (UPRE) element . *1 AAAGG and 1 CCTTT element in its 5' upstream region, sequences also found upstream of other stationary phase responsive genes
*mRNA splicing is regulated by Ire1p and only the product of spliced mRNA is able to induce the response
HAC1
HAP1 CYP1 YLR256W Heme-dependent transcriptional activator of many genes Increased activation of CYC1, CTT1, and CYB2; req. for expression of CYC7 CGGNNNTANCGG
or CGG-N6-CGG
UAS1-B consensus sequence: CGGNNTTNCGG
TGGCCGGGGTTTACGGACGATGA (UAS1-B of CYC1)
GCTAATAGCGATAATAGCGAGGG (UAS of CYC7)
*Heme causes Hap1p to dimerize and dimer form binds to DNA
*Dimerization req. for DNA binding by Hap1p
* In the absence of heme, Hap1p forms a complex at approximately 1,000 kDa, while in the presence of heme, Hap1p is monomeric
*Polyglutamine domain (Gln9-Glu-Gln3) at residues 177-189 similar to polyglutamine domains in Hap2p
*Hap1p dimerization domain between residues 123 and 148
*GAL4-type zinc finger domain at residues 64 - 86
*Contains a Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term region (2 chelated zinc atoms)Zn.jpg (575 Byte)
* 7 repeats of a heme-binding motif, the Cys-Pro-Val (CPV) motif, between residues 280 - 420
* Heme regulation req. three domains: the dimerization domain, the heme domain and the HRM7 (heme-responsive motif 7) domain
HAP1
HAP2 . YGL237C Component of heterotrimeric CCAAT-binding factor . TNATTGGT (coding strand) *Component of HAP (Hap2p-Hap3p-Hap4p-Hap5p) CCAAT-box-binding transcriptional activation complex complex.jpg (710 Byte) Highly conserved core region of 60 amino acids possess all the essential functions HAP2
HAP3 . YBL021C Component of heterotrimeric CCAAT-binding factor Together with Hap2p provides DNA binding function of HAP complex Hap3p binds UAS2 of CYC1 in complex with Hap2p *Component of HAP (Hap2p-Hap3p-Hap4p-Hap5p) CCAAT-box-binding transcriptional activation complex complex.jpg (710 Byte) . HAP3
HAP4 . YKL109W Transcription factor with acidic activation domain
Component of heterotrimeric CCAAT-binding facto
*Involved in activation of CCAAT box-containing genes
*HAP(Hap2p-Hap3p-Hap4p-Hap5p) CCAAT-binding complex plays an important role in transcriptional induction under nonfermentative growth conditions, but has little effect during fermentative growth
. *Component of HAP (Hap2p-Hap3p-Hap4p-Hap5p) CCAAT-box-binding transcriptional activation complex complex.jpg (710 Byte) 2 AAAGG and 3 CCTTT elements, sequences which are also found in other stationary phase responsive genes, in its 5' upstream region
*Transcriptional activation subunit of HAP (Hap2p-Hap3p-Hap4p-Hap5p) CCAAT box-binding transcriptional activation complex
* Not req. for binding of complex to CCAAT box
*Repressed 4-fold by glucose
HAP4
HAP5 . YOR358W Component of heterotrimeric CCAAT-binding facto . . *Component of HAP (Hap2p-Hap3p-Hap4p-Hap5p) CCAAT-box-binding transcriptional activation complex complex.jpg (710 Byte)
Essential for binding activity of complex
*Evolutionarily conserved core domain (residues 154-240) sufficient for CCAAT-binding factor Hap2p-Hap3p-Hap5p assembly, but not for the recuitment of Hap4p into the CCAAT-binding complex HAP5
HAT1 LPA16 YPL001W Histone acetyltransferase, subunit 1 Acetylates lys12 of histone H4 . Histone acetyltransferase B complexTFcomplex.jpg (715 Byte) . HAT1
HAT2 . YEL056W Histone acetyltransferase subunit 2, . . Histone acetyltransferase B complexTFcomplex.jpg (715 Byte) Seven WD (WD-40) repeatsWD.jpg (569 Byte) HAT2
HCM1 . YCR065W Transcriptional suppressor Dosage-dependent suppressor of CMD1 . . *Member of the forkhead family of DNA-binding proteins with 50% identity across 86-residue DNA-binding region of forkhead family proteins
*Transcriptional activator domain
HCM1
HDA1 . YNL021W Component of histone deacetylase A, 75 kDa subunit . . . . HDA1
HFI1 ADA1 SUP110 GAN1 YPL254W Histone acetyltransferase Interacts functionally with histone H2Ai . Component of SAGA transcriptional activator-histone acetyltransferase complex; SLIK (SAGA-like) complexTFcomplex.jpg (715 Byte) . HFI1
HIF1 . YLL022C Factor iinteracting with histone acetyltransferase Hat1p . . . . HIF1
HHF1 H4I YBR009C Histone H4 . . Histone octamer Identical to Hhf2p HHF1
HHF2 H4II CST22 YNL030W Histone H4 . . Histone octamer Identical to Hhf1p HHF2
HHT1 H3I BUR5 YBR010W Histone H3 . . Histone octamer Identical to Hht2p HHT1
HHT2 CST19 SIN2 H3II  YNL031C Histone H3 . . Histone octamer Identical to Hht1p HHT2
HIR1 . YBL008W Histone transcription inhibitor *Req. for periodic repression of 3 of the 4 histone gene loci and for autogenous repression of HTA1-HTB1 locus by H2a and H2b
*Has overlapping functions with Hir2p but also has specific functions at the HTA1 promoter
Not a sequence-specific DNA-binding protein *Functions as a transcriptional corepressor with Hir2p *Member of WD (WD-40) repeat family (7 copies of repeat at N-term)WD.jpg (569 Byte)
*Two separate repression domains, an N-term repression domain containing the WD (WD-40) repeats and a C-term repression domain
HIR1
HIR2 SPT1 YOR038C Histone transcription regulator 2 *Req. for periodic repression of 3 of the 4 histone gene loci and for autogenous repression of HTA1-HTB1 locus by H2A and H2B
* May act on chromatin structure to repress transcription
Probably not a sequence-specific DNA-binding protein . Overlapping functions as a transcriptional repressor with Hir1p HIR2
HIR3 HPC1 YJR140C Histone transcription regulator 3 . . . Member of a subfamily of WD-repeat-containing proteins WD.jpg (569 Byte)(with Msi1p, Hat2p) that function in several histone-related processes including chromatin assembly and histone acetylation and deacetylation HIR3
HMS1 . YOR032C Regulator of pseudohyphal differentiation . . . *Probable transcription factor of the myc family
*Myc-type helix-loop-helix dimerization domain signatureHLH.jpg (831 Byte)
HMS1
HPR1 (TRF1) YDR138W Hyperrecombination protein *Involved in maintaining stability of direct repeat sequences
*Acts as a positive transcription regulator of diverse genes
*Not responsible for the sequence-specific reduction in recombination between C1-3A/TG1-3 tracts near the telomere
* Not essential for DNA repair or meiosis not req. for general transcription activation
. Part of complex of > 1 MDa different from SWI/SNF complex TFcomplex.jpg (715 Byte) *Has a nuclear transport motif HPR1
HSF1 EXA3 MAS3 YGL073W Heat shock transcription factor *Activator of heat-shock genes when it is not phosphorylated *Involved in maintenance of nucleolar integrity
*Plays a role in removing nucleosomes from transcription initiation site of HSP82 heat shock gene
Binds to the heat shock DNA element (HSE) at both normal and elevated temperatures
nGAAnnTTCn and nTTCnnGAAn (mostly muliple boxes present)
Active as a trimer *N-term important for DNA binding
*C-term activation domain is dispensable for transient heat shock activation of SSA1 and SSA3
* Phosphorylation state changes during both heat and oxidative stress
HSF1
HST1 . YOL068C Protein similar to Sir2p . . . Member of SIR2 family HST1
HST2 LPA2 YPL015C Protein similar to Sir2p . . . Member of SIR2 family HST2
HST3 . YOR025W Protein similar to Sir2p . . . Member of SIR2 family HST3
HST4 . YDR191W Protein similar to Sir2p . . . Member of SIR2 family HST4
HTA1 H2A1 SPT11 YDR225W Histone H2A . . Histone octamer Identical to Hta2p HTA1
HTA2 H2A2 YBL003C Histone H2A . . Histone octamer Identical to Hta1p HTA2
HTB1 H2B1 SPT12 YDR224C Histone H2B . . Histone octamer . HTB1
HTB2 H2B2 YBL002W Histone H2B . . Histone octamer Nearly identical to Htb1p HTB2
IME1 . YJR094C Transcription factor required for sporulation, positive regulator of IME2 and many sporulation genes *Stimulates nutritionally starved cells to sporulate
* Positive activator of transcription of SPO11, SPO13, IME2 and HOP1
T(A/G)G(C/G)CG(G/C)C(G/T)A

See: Chu,S. et al., Science 282:699-705 (1998)

*Interaction with Ume6p req. Mds1pcomplex.jpg (710 Byte)
*Converts Ume6p from a repressor of URS1 sites to an activator of URS1 sites
*Activation and DNA-binding domains in N-term region
*Upstream transcription controlling region contains four subdomains, UCS1-UCS4 (upstream transcription controlling region subdomain)
*UCS2 (-621 to -1369) contains both positive and negative regulatory elements
*UCS1 (-350 to -510) is involved in nutrient repression of IME1
IME1
IME2 (SME1) YJL106W Early meiosis regulator 2 ("Start of Meiosis") . . . . IME2
IME4 SPO8 YGL192W Positive transcription factor for IME1 and IME2 Mediates control of meiosis by carrying signals regarding mating type (a/alpha) and nutritional status . . . IME4
INO2 (SCS1) DIE1 YDR123C bHLH-type transcription factor *Req. for transcriptional activation of phospholipid biosynthetic genes
*Ino2p-Ino4p-Opi1p regulate inositol repression of INO1, CHO1, CHO2, OPI3, ITR1, CKI1, HNM1, FAS1, FAS2, and ACC1
CATGTGAAAT element of which CANNTG is the canonical binding site for bHLH proteins Complex with Ino4p (Fbf1 - FAS binding factor) is req. for binding to inositol/choline responsive element (ICRE) in promoters of phospholipid biosynthetic genescomplex.jpg (710 Byte) *C-term basic helix-loop-helix domain at position 253-291 HLH.jpg (831 Byte)
*N-term domain contains two separable transcription activation domains, TAD1 (residues 1-33) and TAD2 (residues 32-106)
INO2
INO4 HRF151 YOL108C bHLH-type transcription factor Involved in activation of phospholipid synthetic genes . Complex with Ino2p (Fbf1 - FAS binding factor) is req. for binding to inositol/choline responsive element (ICRE) in promoters of phospholipid biosynthetic genes complex.jpg (710 Byte) . INO4
IXR1 (ORD1) YKL032C Intrastrand crosslink recognition protein and transcription factor Confers oxygen (O2) regulation on COX5B . . *Several polyglutamine domains typical of transcription factors
*Has 2 HMG boxes
IXR1
KAR4 . YCL055W Regulatory protein Required for pheromone induction of karyogamy genes . . . KAR4
KCS1 . YDR017C Inositol (1,2,3,4,5,6) hexaphosphate kinase Suppressor of temperature-sensitive growth and hyperrecombination in pkc1-4 . . *2 potential leucine zipper domains ZIP.jpg (575 Byte) KCS1
KIN28 . YDL108W Cyclin-dependent ser/thr protein kinase Component of transcription initiation factor TFIIH, phosphorylates C-terminal domain (CTD) of Rpo21p . RNA polymerase II general transcription factor TFIIHTFcomplex.jpg (715 Byte) . KIN28
LEU3 . YLR451W Transcription regulator in branched chain amino acid biosynthesis pathways Acts as both a repressor and an inducer GCCGNNNNCGGC . *Contains a basic region with repeated cysteine motif, similar to other DNA-binding proteins
*Peptide consisting of amino acids 17-147 containing the DNA-binding domain makes specific contact with the triplets
LEU3
LYS14 . YDR034C Transcriptional activator of lysin biosynthesis genes . WWWTCCRNYGGAWWW . *Zn[2]-Cys[6] fungal-type binuclear cluster domain within a cysteine-rich DNA-binding domain (N-term portion) Zn.jpg (575 Byte)
*Activation region in C-term domain
*2-aminoadipate semialdehyde is a coinducer
LYS14
MAC1 CUA1 YMR021C Transcription factor involved in induction of genes required for the reduction and utilization of iron and copper . . . . MAC1
MAL13 . YGR288W Maltose pathway regulatory protein . . . Zn[2]-cys[6] fungal-type binuclear cluster domainZn.jpg (575 Byte) MAL13
MAL33 MAL3R YBR297W Maltose pathway regulatory protein . Sequence-specific DNA-binding transcriptional activator
. Zn[2]-Cys[6] fungal-type binuclear cluster domainZn.jpg (575 Byte)
4 copies of a homologous sequence found at the MAL3 locus
MAL33
MATa1 A1 HMRA1 HMR MATA MAT1A YCR097W Homeodomain regulatory protein A1p . . . With Alpha2p, represses transcription of haploid-specific genes in diploid cells MATa1
MATa2 A2 HMRA2 YCR096C Regulatory protein A2p . . . No known function; sequence is the same as the last 119 residues of Alpha2p MATa2
MAT-alpha1 . YCR040W
YCL066W
Regulatory protein Matalpha1p *Activator together with MCM1/PRTF/GRM of alpha-specific genes in alpha cells TCAATGNCAG
(Q box of alpha-specific genes)
*With Mcm1p binds cooperatively to PQ DNA elements found upstream of alpha-specific genes MAT alpha encodes alpha1 and alpha2 regulators which determine the alpha phenotype. MATa encodes a1 responsible for the a phenotype. In alpha-cells, a-specific genes are repressed while alpha-specific genes are expressed.
Gene is an expressed copy of ALPHA1 translocated to the mating-type (MAT) locus during mating-type switching
MAT-alpha1
MAT-alpha2 HML ALPHA2 MAT2A YCL067C
YCR039C
Homeodomain regulatory protein MATalpha2p *Acts with Mcm1p to turn off a-specific genes. (ALPHA2 and MATALPHA2 have the same coding sequence, but ALPHA2 is silenced
*Req. for the precise positioning of nucleosomes adjacent to the Alpha2 operator in three different contexts
DNA-binding site for Alpha2p is a symmetrical 31-bp sequence with the center occupied by Mcm1p and the ends by Alpha2p dimers
*Binds to DNA as a dimer
*Binds half-sites of various spacing and orientation, but specific binding is determined after association with Mcm1p
CATGTAANNNNNNNNNNNNNNNNNTTACAYG (alpha2 alone; at the alpha2 operator of a-specific genes)
GCTTCCCAATGTAAAAGTACATCATAG (a1-alpha2 complex; MATalpha1promoter)
YCRTGTNNWNANNTACATCA (MATa1, STE5, HO promoters)
**More detailed upstream of a-specific promoters:
CATGTAATTACCTAATAGGGAAATTTACACG (STE6)
CATGTACTTACCCAATTAGGAAATTTACATG (STE2)
CATGTAATTACCGAAAAAGGAAATT:ACATG (BAR1)
TGTGTAATTACCCAAAAAGGAAATTTACATG (MFa1)
CATGTATTTACCTATTCGGGAAATTTACATG (MFa2)
* Interactions with Mcm1p, Tup1p, and Ssn6p are req. for repression of MATa-specific genes Interactions with A1p, Tup1p, and Ssn6p are req.. for repression of haploid-specific genes
*Interactions with Mcm1p and Tup1p are req.. for proper donor selection of the silent mating-type loci
*In a/alpha cells, alpha2 also acts in combination with a1, to turn off the haploid specific genes. The binding of a1-alpha2 complex is different from that of alpha2 alone
*Homeo domain
*Helix-turn-helix motif HLH.jpg (831 Byte)
*2 nuclear localization (NLS) sequences, one in the amino terminal 13 amino acids and one within the homeodomain
*Homeobox domain sufficient for DNA binding in C-term region (residues 132-210)
*N-term domain (residues 1-131) req.. for protein protein interaction
*Gene is an expressed copy of ALPHA2 translocated to the mating-type (MAT) locus during mating-type switching
*N-term 62 residues contains a signal, called Deg 1, that targets the protein for ubiquitin-dependent degradation through the UBC6/UBC7 proteolytic pathway
MAT-alpha2
MBP1 . YDL056W Transcription factor
Subunit of Mbp1/Swi6 complex MBF
. ACGCGTNA: MCB (MluI cell cycle box) Collaborates with Swi6p to form the MBF (Mbp1p-Swi6p) factorcomplex.jpg (710 Byte) Two ankyrin repeatsANK.jpg (828 Byte)
Regulates at Mlu1 cell cycle box (MCB) elements
MBP1
MBR1 . YKL093W Protein involved in mitochondrial biogenesis . . . . MBR1
MCM1 PRTF GRM FUN80 YMR043W Minichromosome maintenance factor 1 Transcription factor of the MADS (Mcm1p, Agamous, Deficiens, SRF) box family
*Activator of a-specific genes in a cells
*Co-activator with alpha1 of alpha-specific genes in alpha cells
*Co-repressor with alpha2 of a-specific in alpha cells
*Involved in repression of a-specific genes and activation of alpha-specific genes
*Target of osmotic stress-responsive signal transduction pathway
*Req. for repression of MATa-specific genes and proper donor selection during mating-type switching through its interaction with Alpha2p but not req.. for repression of haploid-specific genes
*Activation of transcription through the early cell-cycle box (ECB) is maximal at M/G1 boundary
CCTAATTAGG (dyad-symmetry; in haploid-specific genes)
Binding site for Mcm1p (early cell-cycle box, or ECB sequence) is required for timing of transcription and the transcription start-site selection
* Binds to a transcription control element in Ty1 without participation of an associated DNA-binding protein
*Binds cooperatively with MATalpha1p to PQ elements in the promoter region of alpha-specific genes
*Binding sites found upstream of many genes including CLN3, CLB2, FAR1, PMA1, PIS1, DIT1, DIT2, GFA1, PCK1, MET2, CCP1, and HSP150
*Acts with Alpha1p to turn off a-specific genes
*Binds DNA with Ste12p as a coactivator
*Poly-asn and poly-gln stretches
*Recruits coregulatory proteins for both gene activation and repression at a variety of loci
*Fusion to a strong transcriptional activator causes transcription of genes such as SWI5, CLB1, CLB2, and CDC5 at inappropriate times

*MCM1 exerts control over G1 to S phase transition by regulating genes affecting CLN1 and CLN2 expression (SWI4 and CLN3) and genes that activate replication origins (CDC6, CDC46, CDC47)
*Loss of early cell-cycle box (ECB) delays transcription of SWI4, CLN1, CLN2, and CLN3 during cell cycle
*CDC6, CDC46, and CDC47 are req. for DNA replication and are all regulated by Mcm1p

MCM1
MCM2 . YBL023C Minichromosome maintenance factor 2
Member of the MCM/P1 family
. . *Part of Mcm2p-Mcm3p-Cdc46p licensing complex complex.jpg (710 Byte)
*MCM proteins are components of the pre-replication complex because association of MCM proteins with replication origins req. both Orc1p and Cdc6p function
*C4-type zinc finger domain essential for function Zn.jpg (575 Byte)
*Shares a 200 amino acid domain containing the ATPase motif and DNA helicase domain with Mcm3p and Cdc46p
*Complex acts at ARS's to initiate replication
MCM2
MCM3 SYGP-ORF23 YEL032W Minichromosome maintenance factor 3
Member of the MCM/P1 family
. . Part of Mcm2p-Mcm3p-Cdc46p licensing complex complex.jpg (710 Byte) *Shares a 200 amino acid domain containing the ATPase motif and DNA helicase domain with Mcm2p and Cdc46p
*Contains an ATPase and a helicase motif
*Complex acts at ARS's to initiate replication
MCM3
MCM6 . YGL201C Minichromosome maintenance factor 6
Member of the MCM/P1 family
. . . MCM family signature motif of MCM/P1 protein family includes Mcm2p, Mcm3p, Cdc46/Mcm5p, Cdc47p, Cdc54p, and Mcm6p MCM6
MED1 . YPR070W Component of RNA polymerase II holoenzyme and mediator subcomplex . . . Mediator binds directly to a C-terminal domain (CTD) peptide and the CTD domain of Rpo21p is required for mediator function i MED1
MED2 . YDL005C Component of RNA polymerase II holoenzyme and mediator subcomplex . . TFcomplex.jpg (715 Byte) . MED2
MED3 PGD1 HRS1 YGL025C Component of RNA polymerase II holoenzyme and mediator subcomplex Involved in both positive and negative regulation . Two stable mediator subcomplexes can be detected by immnoprecipitation: Rgr1p-containing complex (Rgr1p, Gal11p, Sin4p, Srb7p, and Med1p, Med3p, Med4p, Med7p, Med8p and Med9p) and Med6p-containing complex (Med6p, Rox3p, Srb2p, Srb4p, Srb5p, and Srb6p)
Transcription mediator complex contains Gal11p, Rgr1p, Sin4p, Srb4p, Med1p, Med2p, Pgd1p, Med4p, Med6p, Srb5p, Med7p, Med8p, Rox3p, Srb2p, Srb7p, Srb6p
TFcomplex.jpg (715 Byte)
. MED3
MED4 . YOR174W Component of RNA polymerase II holoenzyme and mediator subcomplex . . Mediator binds directly to a C-terminal domain (CTD) peptide and the CTD domain of Rpo21p is required for mediator function TFcomplex.jpg (715 Byte)i . MED4
MED6 . YHR058C Component of RNA polymerase II holoenzyme and mediator subcomplex . . TFcomplex.jpg (715 Byte) . MED6
MED7 . YOL135C Component of RNA polymerase II holoenzyme and mediator subcomplex . . Mediator binds directly to a C-terminal domain (CTD) peptide and the CTD domain of Rpo21p is required for mediator function TFcomplex.jpg (715 Byte) . MED7
MED8 . YBR193C Component of RNA polymerase II holoenzyme and mediator subcomplex . . Mediator binds directly to a C-terminal domain (CTD) peptide and the CTD domain of Rpo21p is required for mediator function iTFcomplex.jpg (715 Byte) . MED8
MED9 CSE2 YNR010W Component of RNA polymerase II holoenzyme and mediator subcomplex . . TFcomplex.jpg (715 Byte) . MED9
MED10 NUT2 YPR168W See NUT2 . . TFcomplex.jpg (715 Byte) . MED10
MED11 . YMR112C Component of RNA polymerase II mediator (SRB) subcomplex . . Mediator binds directly to a C-terminal domain (CTD) peptide and the CTD domain of Rpo21p is required for mediator function TFcomplex.jpg (715 Byte)i

Transcription mediator complex contains Gal11p, Rgr1p, Sin4p, Srb4p, Med1p, Med2p, Pgd1p, Med4p, Med6p, Srb5p, Med7p, Med8p, Rox3p, Srb2p, Srb7p, Srb6p, Cse2p/Med9p, Nut2p/Med10p, Nut1p, and Ymr112p/Med11p

. MED11
MET4 . YNL103W Transcriptional activator of the sulfur assimilation pathway *Involved in positive transcriptional regulation of Met2p, Met3p, Met5p, Met6p, Met14p, Met16p, and Met17p of the sulfate assimilation pathway . *Cbf1p-Met4p-Met28p complex complex.jpg (710 Byte)
*Interacts with Cbf1p and with Met28p through its leucine zipper
*Member of basic leucine zipper (bZIP) familyZIP.jpg (575 Byte)
*Met4p provides the transcriptional activation function to the Cbf1p-Met4p-Met28p complex
*Involved in a mechanism whereby MET genes are induced when levels of S-adenosylmethionine are low
MET4
MET18 MMS19 YIL128W Protein involved in nucleotide excision repair and transcription by RNA polymerase ii *Req. for both Pol II transcription and DNA repair
*Functions by influencing the activity of TFIIH as an upstream regulatory element
. Not a component of TFIIH or Pol II holoenzyme Contains a leucine-rich motif of 15 tandem repeats
*Aspartokinase signature motif
MET18
MET28 . YIR017C Transcriptional activator of sulfur amino acid metabolism . AAACTGTG and adjacent sequence TCACGTG *Met4p-Met28p-Met31p complex and Met4p-Met28p-Met32p complex complex.jpg (710 Byte)assemble on the sequence AAACTGTG and are stabilized by the binding of Cbf1p to the adjacent sequence TCACGTG *Member of the basic leucine zipper (bZIP) family, works with Met4p and Cbf1pZIP.jpg (575 Byte)
*fos/jun DNA-binding homology domain
*Stimulates binding of Cbf1p to the promoter of MET16 by lowering the dissociation rate of the Cbf1p-DNA complex
*Does not possess intrinsic transcription activation function
MET28
MET30 . YIL046W F-box protein *Req. for S-adenosylmethionine inhibition of Met4p activation function
*Some alleles have a dominant inhibitory function
. SCF-Met30p complexcomplex.jpg (710 Byte) (Skp1p-Cdc53p-Cdc34p-Met30p) is required for Cdc34p-dependent ubiquitination and degradation of Cdk-inhibitory kinase Swe1p *5 WD (WD-40) repeatsWD.jpg (569 Byte)
*Contains a cyclin F box shared with Cdc4p, Grr1p, and six proteins of unknown function
MET30
MET31 . YPL039W Transcriptional regulator of methionine metabolism . AAACTGTG
*Binds to a promoter sequence containing 5'-AAACTGTGG-3'
*Met4p-Met28p-Met31p complex and Met4p-Met28p-Met32p complex complex.jpg (710 Byte)assemble on the sequence AAACTGTG and are stabilized by the binding of Cbf1p to the adjacent sequence TCACGTG *C2H2-type zinc finger domain in the C-term Zn.jpg (575 Byte)

*Both the bZIP domain ZIP.jpg (575 Byte)and the amino acid residues 375 to 403 of Met4p are needed to assemble the Met4p-Met28p-Met31p complex on the sequence AAACTGTG

MET31
MET32 . YDR253C Transcriptional regulator of methionine metabolism . AAACTGTGG
(see above)
*Met4p-Met28p-Met31p complex and Met4p-Met28p-Met32p complex complex.jpg (710 Byte)assemble on the sequence AAACTGTG and are stabilized by the binding of Cbf1p to the adjacent sequence TCACGTG C2H2-type zinc finger domain Zn.jpg (575 Byte) MET32
MGA1 . YGR249W Protein similar to heat shock transcription factors . . . . MGA1
MGA2 . YIR033W Probable chromatin remodeling factor . . . . MGA2
MIG1 SSN1 CAT4 YGL035C Transcriptional repressor involved in glucose-repression . GCGGGG
WWWWSYGGGG

Binds SUC2A and SUB2B DNA elements in vitro req.. for glucose repression of SUC2
*Recognizes and binds to promoters of glucose-repressible genes and recruits co-repressor complex Tup1p-Ssn6p
*Binds to two GC rich regions in the SUC2 promoter (nt -505 to -483 and -451 to -426)

Model predicts that Mig1p is converted to non-repressing conformation upon activation of Snf1p/Snf4p protein kinase Two C2H2 zinc finger domains at residues 34-61 and 62-91Zn.jpg (575 Byte)
Plays a role in glucose repression of MAL genes
MIG1
MIG2 MLZ1 YGL209W Zinc-finger protein involved in glucose repression of SUC2 *Req. for glucose repression of SUC2 expression
*Has little role in glucose repression of promoters other than SUC2 with Mig1p-binding sites
. . *C2H2-type zinc finger domain; Mig1p, Mig2p, and Yer028p all have the same number and arrangement of zinc fingers Zn.jpg (575 Byte)
*ATP/GTP-binding domain (P-loop)
MIG2
MKS1 LYS80 YNL076W Negative regulator of nitrogen metabolism . . . Involved in regulation of Ras-cAMP pathway and of lysine biosynthesis pathway, MKS1
MOT1 BUR3 ADI YPL082C Transcriptional Accessory Protein (TAF) Involved in transcriptional repression through interaction with TATA-binding protein (TBP) . . Member of the Snf2p family of DNA helicases MOT1
MOT2 SIG1 NOT4 YER068W See SIG1 . . . . MOT2
MOT3 . YMR070W High-copy suppressor of MOT1-SPT3 synthetic lethality . . . Two tandem C2H2-type zinc fingersZn.jpg (575 Byte) MOT3
MSN1 FUP1 PHD2 MSS10 HRB382 YOL116W Transcriptional activator *Activates genes regulated through Snf1p, involved in response to nutrient limitation
*Activates STA1, STA2, and STA3 transcription
. . . MSN1
MSN2 . YMR037C Transcriptional activator for genes in multistress response and genes regulated through Snf1p *Thirty-nine gene products including ALD3, ALD3, GDH3, GLK1, HOR2, HSP104, HXK1, PGM2, SOD2, SSA3, SSA4, TKL2, TPS1, and ARA1 are dependent on Msn2p and Msn4p for their induction at the diauxic shift and are repressed by cAMP
*Both Msn2p and Msn4p are req. for transmitting glucose signals to the IME1 promoter region
STRE element (CCCCT) . *Two C2H2-type zinc finger domains Zn.jpg (575 Byte)
*A region (residues 264-568) containing the PKA consensus site around Ser288 and sequences with strong similarity to Msn4p is req.. and sufficient to confer stress-regulated nuclear localization to reporter proteins
*Accumulates in the nucleus under stress conditions, such as heat shock, osmotic stress, carbon-source starvation, and in the presence of ethanol or sorbitol
*Nuclear localization is correlated inversely to cAMP levels and protein kinase A activity
MSN2
MSN4 . YKL062W Transcriptional activator *Thirty-nine gene products are dependent on Msn2p and Msn4p for their induction at the diauxic shift and are repressed by cAMP
*Both Msn2p and Msn4p are req. for transmitting glucose signals to the IME1 promoter region
. . *Two tandem C2H2-type zinc finger domains near its C-termZn.jpg (575 Byte)
*Predicted EF-hand calcium-binding domain (see MIPS)
MSN4
MTF1 RF1023 YMR228W Mitochondrial RNA polymerase specificity factor . . . . MTF1
MUB1 . YMR100W Factor involved in the regulation of bud site selection . . . Zinc-finger proteinZn.jpg (575 Byte) MUB1
NCB2 YDR1 YDR397C NC2 (Dr1/Drap1) repressor of class II transcription, beta subunit . . Forms a heterodimer with human NC2alpha that is functional for transcriptional repression.complex.jpg (710 Byte) . NCB2
NDT80 . YHR124W Transcription factor Meiosis-specific protein required for exit from pachytene
Dependent on IME1, which activates early sporulation genes
URS1: 5'TCGGCGGCTDW

MSE: 5'HDVKNCACAAAAD

See: Chu,S. et al., Science 282:699-705 (1998)

. . NDT80
NGG1 ADA3 SWI7 YDR176W Component of the nucleosomal histone acetyltransferase (SAGA) complex . . SAGA complex . NGG1
NIF3 . YGL221C Ngg1p-interaction factor . . . . NIF3
NOT3 . YIL038C High-copy suppressor of cdc36 and cdc39mutations Null mutants have phenotype similar to cdc36 and cdc39 . CCR4 transcriptional complex contains Ccr4p, Pop2p, Dbf2p, Cdc39p, Cdc36p, Not3p, and Sig1p complex.jpg (710 Byte) . NOT3
NRD1 . YNL251C Protein controling transcriptional elongation . . Interacts with the C-terminal domain of RNA polymerase II large subunit and binds DNA through a RNA recognition (RRM) domain.TFcomplex.jpg (715 Byte) . NRD1
NSP1 . YJL041 Nuclear pore protein . . . . NSP1
NUT1 . YGL151W Component of RNA polymerase II mediator (SRB) subcomplex . . SRB complexTFcomplex.jpg (715 Byte) . NUT1
NUT2 MED10 YPR168W Subunit of RNA polymerase II holoenzyme mediator (SRB) subcomplex . . SRB complexTFcomplex.jpg (715 Byte) . NUT2
OAF1 YAF1 YAL051W Transcription factor Required for induction of POX1 on oleate-containing medium
plays a role in peroxisome proliferation
. Peroxisomal transcription factor complexcomplex.jpg (710 Byte) . OAF1
OPI1 . YHL020C Negative regulator of phospholipid biosynthesis genes *Negative regulator of INO2 but not INO4 expression
*Ino2p, Ino4p, and Opi1p regulate inositol repression of INO1, CHO1, CHO2, OPI3, ITR1, CKI1, HNM1, FAS1, FAS2, and ACC1
. . . OPI1
ORC1 . YML065W Origin recognition complex (ORC), large subunit . ORC complex binds to sequences A and B1 of DNA
DNA-binding activity of the origin recognition complex (ORC) requires the coordinate action of Orc1p, Orc2p, Orc3p, and Orc5p, but not Orc6p
All origin recognition complex (ORC) subunits bind chromatin throughout the cell cycle
Origin recognition complex (ORC) subunits are in the major groove of ARS1 DNA
*Origin recognition complex (ORC) is comprised of Orc1p, Orc2p, Orc3p, Orc4p, Orc5p, and Orc6p complex.jpg (710 Byte)
*Interacts with C-term of Sir1p
*ORC is a component of the post-replication complex because ORC is also associated with origins at G2/M and this interaction is disrupted by ORC mutations
*ORC associates with replication origins throughout the cell cycle in vivo, whereas MCM proteins and Cdc45p act at origins in a very early step of replication
*ORC bends ARS DNA at some but not all origins
N-term domain is req. for function of the origin recognition complex (ORC) in mating-type silencing
*N-term domain is not req. for growth and therefore is probably not involved in DNA replication
ORC1
ORC2 RRR1 SIR5 YBR060C Origin recognition complex (ORC), 72 kDa subunit Functions early in DNA replication See ORC1 See ORC1complex.jpg (710 Byte) Binds to the A element of the mating-type silencer region HMR, which contains the 11 bp consensus sequence req. at origins of DNA replication ORC2
ORC3 . YLL004W Origin recognition complex (ORC), 62 kda subunit; 'Orc2p-associated factor' . See ORC1 See ORC1complex.jpg (710 Byte) . ORC3
ORC4 . YPR162C Origin recognition complex (ORC), 56 kda subunit . See ORC1 See ORC1complex.jpg (710 Byte) . ORC4
ORC5 . YNL261W Origin recognition complex (ORC), 50 kda subunit *Req. at G1/S and in early M phase
*Not req. for exit from mitosis, but req.. to begin S phase execution point for the G1/S function is between the nocodazole block in M phase and the START point in G1
See ORC1 See ORC1complex.jpg (710 Byte) . ORC5
ORC6 (AAP1) YHR118C Origin recognition complex (ORC), sixth subunit . See ORC1 See ORC1complex.jpg (710 Byte) *Phosphorylated as cells enter S phase
*Promoter has Mlu1 cell cycle box (MCB) elements
ORC6
PCL1 HCS26 YNL289W G1/S-specific cyclin . . Can interact with the Cdc28p-like kinase Pho85pcomplex.jpg (710 Byte) . PCL1
PCL2 CLN4 YDL127W Cyclin, found partly in association with Pho85p . . . . PCL2
PCL5 . YHR071W Cyclin, associates with Pho85p . . . Member of Pcl1p,2p subfamily which includes Pcl1p, Pcl2p, Pcl5p, Pcl9p, and Clg1p PCL5
PCL6 . YER059W Cyclin, associates with Pho85p . . . Member of Pho80p subfamily which includes Pcl6p, Pcl7p, Pcl8p, and Pcl10p PCL6
PCL7 . YIL050W Cyclin, associates with Pho85p . . . . PCL7
PCL8 . YPL219W Cyclin, associates with Pho85p Involved in control of glycogen accumulation . . . PCL8
PCL9 . YDL179W Cyclin, associates with Pho85p . . . . PCL9
PCL10 . YGL134W Cyclin, associates with Pho85p Involved in control of glycogen accumulation . . . PCL10
PDR1 SCT1 CYH3 AMY1 ANT1 BOR2 NRA2 SMR2 TIL1 TPE1 (OLI1) YGL013C Transcription factor related to Pdr3p *Controls the expression of PDR5, SNQ2, STE6, PDR10, PDR11, YOR1, GAS1, IPT4, G3PD
*May have a role in regulation of PMA1
*Positive regulator of PDR5
*Positively regulates HXT9 and HXT11 transcription
*Regulates expression of PDR10 and PDR15
*Can regulate level of Pdr3p (Delahodde A, Delaveau T, Jacq C, Yeast 11:S177, 1995)
Details: Goffeau et al.
Binds to the Pdr1p/Pdr3p response element PDRE
*Binds in vitro to 2 PDREs (PDR responsive elements) in the PDR10 and PDR15 promoters
Interacts with amino acids 274-307 of Ngg1p *Zn[2]-Cys[6] fungal-type binuclear cluster domain in the N-term regionZn.jpg (575 Byte)
*Posttranslationally upregulated by Pdr13p
PDR1
PDR3 (PDR4) (PDR7) AMY2 TPE3 YBL005W Transcription factor related to Pdr1p *Positively regulates HXT9 and HXT11 transcription
*Regulates expression of PDR5, PDR10 and PDR15
*Autoactivation is involved in the drug resistance phenomenon
* Positively autoregulates its own promoter with two binding sites
*PDR3 and PDR1 cross-complement pdr1 or pdr3 mutants
Binds to an inverted palindrome spaced by 0 bp (CCGCGG) [PDRE] Amino acids 1-373 of Ngg1p interacts with a domain of Pdr3p containing amino acids 756-976 *Zn[2]-cys[6] fungal-type binuclear cluster domain in the N-term regionZn.jpg (575 Byte)
*Weak activation domain near the zinc finger and a strong activation domain near the C- terminus
PDR3
PHD1 . YKL043W Transcription factor involved in regulation of filamentous growth . . . *Basic helix-loop-helix motif HLH.jpg (831 Byte) similarity to those of the transcription factors Pho4p and Cbf1p and mammalian Myc, Max, MyoD, and E47
*Contains a 100-amino acid region, including a basic helix-loop-helix motif highly conserved in S. cerevisiae Phd1p and Sok2p
PHD1
PHO2 BAS2 GRF10 YDL106C Homeodomain protein required for expression of phosphate pathway and other genes . Binds at A/T-rich sequences that flank UAS motifs; the UAS's bind other transcriptional regulators
UAS:
AAAWKAGTTAATTRAWT

See: PHO5 regulation

*Works in cooperation with Pho4pcomplex.jpg (710 Byte)
*Cooperates with Swi5p to stimulate transcription with Bas1p participates in basal and induced regulation of purine pathway genes including ADE1, ADE2, ADE5,7 and ADE8
*C-term domain req. for interaction with Pho4p
*Nuclear localization (NLS) sequence in the N-term region
Pho2p and Pho4p are req. to activate the chromatin structure in the PHO5 promoter
*Accessibility to its binding sites is increased by RAP1
PHO2
PHO4 . YFR034C bHLH-type transcription factor required for expression of phosphate pathway *Pho4p is the primary trigger for the chromatin transition in the PHO5 promoter, while Pho2p either functions in the promoter by destabilizing histone-DNA interactions or by undergoing interactions with Pho4p Binds to two UAS elements in the PHO5 promoter, UASp1 and UASp2

CACGTG

Pho4p binds DNA as a homodimer
*Binding to UASp2 elements is blocked by nucleosome -2

See: PHO5 regulation

*Pho80p-Pho85p complex coimmunoprecipitates with Pho4pcomplex.jpg (710 Byte)
*Pho80p interferes with Pho4p oligomerization and negatively controls transcription
*Acidic region at N-term is req. for interaction with negative regulatory factor Pho80p
*Region responsible for Pho4p oligomerization and also for interaction with Pho80p lies between residues 172 and 227, and this region is req.. for transcriptional activity
*Cyrstal structure of two bHLH domains of Pho4p (each 63 amino acids) complexed to 17 bp of ds DNA has been determined and refined to a resolution of 2.8 AngstromsHLH.jpg (831 Byte)
*Nuclear localization signal is necessary and sufficient for PSE1-dependant nuclear import in vivo
*Hyperphosphorylation by Pho80p-Pho85p complex causes inactivation
*Phosphorylation of Pho4p prevents the expression of PHO5
PHO4
PHO23 . YNL097C Transcriptional regulator *Protein involved in chromatin remodeling and possibly transcription regulation
*Involved in expression of PHO5
. Pho80p-Pho85p complexcomplex.jpg (710 Byte) . PHO23
PHO80 TUP7 AGS3 YOL001W Cyclin, interacts with Pho85p protein kinase to regulate the phosphate pathway through phosphorylation of Pho4p *Req. for inhibition of PHO5 and PHO11 transcription
*Not involved in regulating expression of PHO4 or PHO85
See: PHO5 regulation Pho81p-Pho80p dissociate from Pho4p in low phosphate, but still interact with each othercomplex.jpg (710 Byte) *Pho80p/Pho85p phosphorylates Pho4p at serines 100, 114, 128, 152, and 223
*Pho81p functions upstream of Pho80p/Pho85p
*Pho80-Pho85p phosphorylates Pho4p about 10-fold more effectively than Gsy2p, whereas Pcl10-Pho85p phosphorylates Gsy2p much more effectively than Pho4p
PHO80
PHO81 (SPL1) YGR233C Cyclin-dependent kinase (CDK) inhibitor for Pho80p-Pho85p complex, positive regulatory factor for phosphate pathway *Req. for synthesis of Pho5p
*Thought to sense the low-phosphate signal, perhaps at the transporter complex, followed by translocation into the nucleus to derepress the phosphate pathway
See: PHO5 regulation Pho80p-Pho85p complexcomplex.jpg (710 Byte) *141 amino acid segment from residue 584 to 724, including ankyrin repeats 5 and 6, has activity
*C-term domain positively regulates the activity of the functional domain
*N-term domain negatively regulates the activity of the functional domain
*6 ankyrin repeats ANK.jpg (828 Byte)
PHO81
PHO85 SSG3 YPL031C Cyclin-dependent protein kinase *Pho80p-Pho85p phosphorylates Pho4p at serines 100, 114, 128, 152, and 223

*Pho80p-Pho85p phosphorylation of Pho4p inhibits Pho4p activity by localizing Pho4p to the cytoplasm

See: PHO5 regulation Interacts with cyclin Pho80p to regulate phosphate pathway, also interacts with other Pho80p-like cyclinscomplex.jpg (710 Byte) . PHO85
PHO86 . YJL117W Protein associated with phosphate transport complex . . complex.jpg (710 Byte) Regulates Pho81p activity PHO86
PHO88 . YBR106W Membrane protein involved in inorganic phosphate transport Regulates Pho81p function together with Pho86p . complex.jpg (710 Byte) . PHO88
PPR1 . YLR014C Transcription factor regulating pyrimidine pathway Regulates pyrimidine pathway genes URA1, URA3, and URA4 CGG(N){2,11}CCG . Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-terminal regionZn.jpg (575 Byte) PPR1
PUT3 . YKL015W Transcriptional activator for proline utilization pathway genes *Req. for basal and induced expression of proline utilization enzymes
*Responds to proline levels but not to nitrogen excess or limitation
Binds to inverted CGG triplets spaced by 10 bp

CGG(N){10}CCG

*Functions as a dimer and activates transcription with its negatively charged C-term *Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term regionZn.jpg (575 Byte)
*A peptide fragment of residues 31-126 containing the Zn[2]-Cys[6] binuclear cluster domain has the DNA-binding activity
*An acidic domain at the C-term has net charge of -29
*Besides the DNA-binding domain is an acidic domain with net charge of -17
*Proline-responsive domain outside the C-term domain
PUT3
RAD1 . YPL022W Component of the nucleotide excision repairosome . . NEF1, nucleotide excision repair factor 1
Repairosome complex
Homolog of human XPF xeroderma pigmentosum gene product and the mammalian ERCC-4 protein RAD1
RAD2 . YGR258C Component of the nucleotide excision repairosome Structure-specific single-stranded DNA endonuclease . NEF3, nucleotide excision repair factor 3
Repairosome complex
In the presence of active nucleotide excision repair (NER), TFIIH is preferentially mobilized from the basal transcription machinery for use in NER RAD2
RAD3 . YER171W Component of the nucleotide excision repairosome DNA helicase/ATPase of RNA polymerase II transcription initiation factor TFIIH . NEF3, nucleotide excision repair factor 3
Repairosome complex
. RAD3
RAD4 . YER162C Component of the nucleotide excision repairosome . . NEF2, nucleotide excision repair factor 2
Repairosome complex
Homolog of human XPC xeroderma pigmentosum gene product RAD4
RAD5 REV2 SNM2 YLR032W DNA helicase of the Snf2p family Member of the RAD6 epistasis group, involved in error-free DNA repair DNA-binding protein *Rad5p-Rad18p complex 
*Ubc13p-Rad5p-Mms2p complex
*Rad18p-Rad5p-Ubc13p complex
RAD5
RAD6 UBC2 PHL40 YGL058W Ubiquitin conjugating enzyme involved in an error-prone DNA-damage recovery pathway . . Rad6p-Rad18p complex . RAD6
RAD7 . YJR052W Nucleotide excision repair protein involved in G2 repair . . Repairosome complex Damaged DNA-bound Rad7p-Rad16p complex may serve as a nucleation site for assembly of other NER factors including NEF1, NEF2, NEF3, and replication factor A RAD7
RAD10 . YML095C Component of the nucleotide excision repairosome . . NEF1, nucleotide excision repair factor Repairosome complex Homolog of mammalian ERCC-1 gene product RAD10
RAD14 . YMR201C Component of the nucleotide excision repairosome . . NEF1, nucleotide excision repair factor Repairosome complex *Zinc-binding proteinZn.jpg (575 Byte)
*Homolog of human XPA xeroderma pigmentosum gene product
RAD14
RAD16 PSO5 YBR114W Nucleotide excision repair protein involved in G2 repair Repair of inactive genes . Repairosome complex *DNA helicase domain of Snf2p family RAD16
RAD18 UVS18 UXS1 (MMS2) YCR066W Multifunctional DNA repair protein Required for post-replication repair . Rad6p-Rad18p complex . RAD18
RAD23 . YEL037C Nucleotide excision repair protein . . NEF2, nucleotide excision repair factor 2
Repairosome complex
Has a ubiquitin-like domain
Ortholog of the human XP-C complementing gene products hHR23B and hHR23A
RAD23
RAD24 . YER173W Nucleotide excision repair protein Checkpoint protein required for G2 arrest after DNA damage . RFC-like Rad24p complex . RAD24
RAD25 SSL2 LOM3 RTT4 UVS112 YIL143C DNA helicase component of RNA polymerase II transcription initiation factor TFIIH . . NEF3, nucleotide excision repair factor 3
Repairosome complex
. RAD25
RAD26 . YJR035W Putative helicase involved in transcription-coupled repair . . . Homolog of Cockayne syndrome B gene ERCC-6 RAD26
RAD27 RTH1 ERC11 (FEN1) YKL113C Single-stranded DNA endonuclease and 5'-3' exonuclease Functions in the MSH2-MLH1-PMS1-dependent mismatch repair system . . . RAD27
RAD28 . YDR030C Factor involved in transcription-coupled repair . . . WD (WD-40) repeatsWD.jpg (569 Byte) RAD28
RAD30 RAD29 DBH1 YDR419W DNA polymerase pol-eta . . . Can replicate efficiently past a thymine-thymine cis-syn cyclobutane dimer RAD30
RAD50 . YNL250W Factor involved in recombinational DNA repair . . RAD50-MRE11-XRS2 complex Coiled-coil proteinZIP.jpg (575 Byte)
Needed for resection at double-stranded breaks and required for DNA repair during vegetative growth
RAD50
RAD51 MUT5 YER095W Protein that stimulates pairing and strand-exchange between homologous single-stranded and double-stranded DNA . . . . RAD51
RAD52 . YML032C Component of the recombinosome complex . . Recombinosome complex required for recombination and repair of X-ray damage, has a late function in

meiotic recombination

RAD52
RAD54 . YGL163C DNA-dependent ATPase of the Snf2p family, required for recombination and repair of X-ray damage . . . . RAD54
RAD55 . YDR076W Component of the recombinosome complex . . Recombinosome complex Involved in meiotic recombination and recombinational repair
With Rad57p promotes DNA strand exchange by Rad51p recombinase
RAD55
RAD57 . YDR004W Component of the recombinosome complex . . Recombinosome complex Involved in meiotic recombination and recombinational repair
With Rad55p promotes DNA strand exchange by Rad51p recombinase
RAD57
RAD58 MRE11 XRS4 NGS1 YMR224C Single-stranded endonuclease and double-stranded exonuclease required for double strand break repair and meiotic recombination . . . . RAD58
RAD59 . YDL059C Component of the recombinosome complex . . Recombinosome complex Homolog of Rad52p involved in homologous recombination and DNA repair RAD59
RAP1 GRF1 (TUF1) YNL216W Repressor-activator protein *Major structural protein in the telomere
*Controls the transcription of most ribosomal protein genes
(A/G)(A/C)ACCCANNC-A(T/C)(T/C)

RMACCCANNCAYY

*Complexes with SIR proteins and repressed chromatin adjacent to telomeric DNA
*May participate in a complex containing Sir3p, Sir2p, Sir4p, Rap1p, Hht1p, Hht2p, Hhf1p, and Hhf2p on DNA adjacent to telomeres and/or TG1-3/C1-3A
*DNA binding domain (residues 330-600) has no obvious similarity to any other DNA-binding motifs
*Req. for telomere length control and telomere position effect (silencing)
*Residues 630-692 are sufficient for transcriptional activation, while residues 667-827 are sufficient for transcriptional silencing
RAP1
RCS1 AFT1 YGL071W Transcriptional regulator Regulates genes involved in iron uptake and control of cell size . . . RCS1
REB1 GRF2 (RBP1) QBP YBR049C rDNA enhancer binding protein 1
Termination factor for RNA polymerase I and transcription factor for RNA polymerase II
. GT(A/C)CGGGTAA

CCGGGTAA

TPI1, ILV1, GAL1-10, CDC9, TOP1, SWI5, 35SrRNA enhancer *N-term region can function as a transcriptional activator
*N-term region contains a glutamine-rich domain between residues 60 and 200
*Acts in termination by causing RNA Polymerase I to pause
*Binding alters DNA conformation at initiation site
*DNA-binding sites of Abf1p and Reb1p can functionally replace each other in different promoters
REB1
RFX1 . YLR176C DNA binding protein Homologous to a family of mammalian RFX1-4 proteins which have a novel highly conserved DNA binding domain . . . RFX1
RGM1 . YMR182C Transcriptional repressor Homologous to mammalian EGR (early growth response) factor . . *Proline-rich protein
*Two tandem C2H2-type zinc fingersZn.jpg (575 Byte)
RGM1
RGR1 . YLR071 Component of RNA polymerase II holoenzyme and Kornberg's mediator (SRB) complex *Proposed to either regulate the glucose transport genes or to inhibit their function
*Functions as a transcriptional repressor in the absence of glucose
*Neutral function in transcriptional regulation of HXT2 and HXT4 in cells growing on low levels of glucose
Binds to promoter of HXT genes in the absence of glucose to repress transcription . *Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term region Zn.jpg (575 Byte)
*Exerts positive and negative effects on transcription
RGR1
RGT1 . YKL038W Negative transcription factor involved in regulation of glucose transporters . Binds to promoter of HXT genes in the absence of glucose to repress transcription ?? Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term regionZn.jpg (575 Byte)
*Proposed to either regulate the glucose transport genes or to inhibit their function
*Functions as a transcriptional repressor in the absence of glucose
*Neutral function in transcriptional regulation of HXT2 and HXT4 in cells growing on low levels of glucose
RGT1
RIC1 . YLR039C Transcription factor for ribosomal protein and ribosomal RNA genes . . . . RIC1
RIM1 . YCR028C-A Single-stranded DNA-binding protein . . . *Three C2H2-type zinc fingersZn.jpg (575 Byte)
*Required for replication in mitochondria
RIM1
RIM101 (RIM1) YHL027W Factor involved in induction of IME1, IME2, DIT1, and DIT2 transcription . . Acts in RIM1 pathway with Rim101p, Rim8p, Rim9p, and Rim13p (see SGD) *Zinc-finger protein Zn.jpg (575 Byte)
*RIM1 pathway functions in parallel to the Mck1p pathway by epistasis analysis (see SGD)
RIM101
RLM1 LPG19 YPL089C Transcription factor of the MADS (Mcm1p, Agamous, Deficiens, SRF) box family *Serum response factor-like protein that functions downstream of Mpk1p in MAP kinase pathway CTA(T/A)4TAG DNA-binding domains of Rlm1p and Smp1p can form heterodimers, which have an intermediate DNA-binding specificity C-term domain is req.for transcriptional activation RLM1
RME1 (CSP1) YGR044C Transcriptional repressor of meiosis in non-a/alpha cells *Inhibitor of meiosis and sporulation
*Blocks Ime1p expression
*Acts as a negative regulator of meiotic activator IME1 transcription
*Activates CLN2 expression
*Does not mediate nutritional control of sporulation
GWACCTCAARA *Repressed by a1/alpha2 repressor
*Induced in non-a/alpha cells in stationary phase
Trancription affected by regulator Sin3p
*Three Zn[2]Cys[6]-like domains at residues 178-199, 206-234, and 256-281 all three Zn[2]Cys[6] domains are req. for functionZn.jpg (575 Byte) RME1
RMS1 (MRS1) YDR257C Putative transcriptional regulator . . . . RMS1
ROX1 REO1 YPR065W Heme-dependent transcriptional repressor of hypoxic genes including CYC7 and TIF51B/ANB1 . 12 base pair hypoxic consensus sequence

YNNYYACCCG

. Amino terminal portion has similarity to HMG proteins
*First 100 amino acids comprising HMG domain are responsible for DNA-binding
*C-term 75% of the molecule is involved in repression and contains redundant repression information
*Expression is heme-dependent
ROX1
ROX3 SSN7 NUT3 ARE3 YBL093C Component of RNA polymerase II holoenzyme and mediator subcomplex *Functions in both repression and activation of transcription
*Represses basal transcription of UAS-less genes, as does Sin4p
. TFcomplex.jpg (715 Byte) . ROX3
RPA12 RRN4 YJR063W RNA polymerase I subunit A12.2 . . . . RPA12
RPA14 . YDR156W RNA polymerase I subunit A14 . . . . RPA14
RPA34 CST21 YJL148W Nonessential component of RNA-polI . . . . RPA34
RPA43 . YOR340C RNA polymerase I subunit; not shared with other polymerases . . . . RPA43
RPA49 . YNL248C RNA polymerase I third largest subunit . . . . RPA49
RPA135 (RPA2) SRP3 RRN2 YPR010C RNA polymerase I second largest subunit . . . . RPA135
RPA190 RRN1 YOR341W RNA polymerase I largest subunit . . . . RPA190
RPB1 RPO21 SUA8 RPB220 YDL140C RNA polymerase II, largest subunit . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB1
RPB2 RPB150 SIT2 SOH2 YOR151C RNA polymerase II, second-largest subunit . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB2
RPB3 . YIL021W RNA polymerase II, third-largest subunit (B45) . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB3
RPB4 . YJL140W RNA polymerase II, fourth-largest subunit (B32), . . RNA Pol II core complex TFcomplex.jpg (715 Byte) Non-essential subunit, confers stress tolerance RPB4
RPB5 SPP51 YBR154C Shared subunit of RNA polymerases I, II, and III (ABC27) . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB5
RPB6 RPO26 YPR187W Shared subunit of RNA polymerases I, II, and III (ABC23)  . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB6
RPB7 . YDR404C RNA polymerase II, non-essential subunit . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB7
RPB8 . YOR224C Shared subunit of RNA polymerases I, II, and III (ABC14.5) . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB8
RPB9 SSU73 YGL070C RNA polymerase II, non-essential subunit, not shared . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB9
RPB10 . YOR210W Shared subunit of RNA polymerases I, II, and III (ABC10beta), . . RNA Pol II core complex TFcomplex.jpg (715 Byte) Zinc-binding domainZn.jpg (575 Byte) RPB10
RPB11 . YOL005C RNA polymerase II, essential subunit, not shared . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPB11
RPB12 RPC10 YHR143W-A Shared subunit of RNA polymerases I, II, and III (ABC10alpha) . . RNA Pol II core complex TFcomplex.jpg (715 Byte) Zinc-binding domainZn.jpg (575 Byte) RPB12
RPC10 RPB12 YHR143W-A See RPB12 . . RNA Pol II core complex TFcomplex.jpg (715 Byte) . RPC10
RPC11 . YDR045C RNA polymerase III subunit C11 . . . Required for RNA cleavage activity and transcriptional termination RPC11
RPC17 . YJL011C RNA polymerase III subunit C17 . . . . RPC17
RPC19 . YNL113W Shared subunit of RNA polymerases I and III . . . . RPC19
RPC25 . YKL144C RNA polymerase III, subunit C25 . . . . RPC25
RPC31 RPC8 ACP2 YNL151C RNA polymerase III, small subunit, essential subunit, not shared . . . . RPC31
RPC53 RPC4 YDL150W RNA polymerase III, fourth-largest essential subunit (C53) . . . . RPC53
RPC82 RPC3 YPR190C RNA polymerase III, third-largest subunit . . . . RPC82
RPC128 RET1 RPC2; PDS2 YOR207C RNA polymerase III, second-largest subunit (C128) . . . . RPC128
RPC160 RPO31 RPC1 YOR116C RNA polymerase III, largest subunit . . . . RPC160
RPD3 IRS2 SDI2 SDS6 TSC9 REC3 CARGR3 CARGRIII CAR82 YNL330C Component of histone deacetylase B . . . Transcriptional modifier required for full repression or full activation of many genes RPD3
RPN4 SON1 PER8 UFD5 GVM1 YDL020C Transcriptional activator of 26S proteasomal genes and genes related to the ubiquitin/proteasome pathway

PACE catalog

. GGTGGCAAA

RPN4 and RPT genes

. Unusual C2H2-finger proteinZn.jpg (575 Byte)
Binds zinc
Two acidic domains
Subunit of the regulatory particle of the proteasome
Binds to PACE-box to act as a positive regulator of expression
RPN4
RPO10 RPB12 YHR143W-A See RPB12 . . . . RPO10
RPO21 RPB1 SUA8 RPB220 YDL140C RNA polymerase II, 215 KD subunit . . TFcomplex.jpg (715 Byte) . RPO21
RPO26 RPB6 YPR187W Subunit shared by RNA Pol I, II and III (ABC23) . . TFcomplex.jpg (715 Byte) . RPO26
RPO31 RPC1 RPC160 YOR116 RNA polymerase III, 160 KD (largest) subunit . . . . RPO31
RPO41 . YFL036 RNA polymerase, mitochondrial . . . . RPO41
RRN3 . YKL125 RNA polymerase I specific transcription factor RNA polymerase I transcription factor . . . RRN3
RRN5 . YLR141 RNA polymerase I specific transcription initiation factor Component of the Upstream Activation Factor (UAF) complex, involved in activation of RNA polymerase I . . . RRN5
RRN6 . YBL014C RNA polymerase I specific transcription initiation factor Component of RNA polymerase I core transcription factor (CF) along with Rrn7p and Rrn11p . . . RRN6
RRN7 . YJL025W RNA polymerase I specific transcription initiation factor Component of RNA polymerase I core transcription factor (CF) along with Rrn6p and Rrn11p . . . RRN7
RRN9 . YMR270C . Component of the Upstream Activation Factor (UAF) complex, involved in activation of RNA polymerase I . . . RRN9
RRN10 . YBL025W RNA polymerase I-specific transcription initiation factor Component of the Upstream Activation Factor (UAF) complex, involved in activation of RNA polymerase I . . . RRN10
RRN11 . YML043C RNA polymerase I specific transcription initiation factor Component of RNA polymerase I core transcription factor (CF) along with Rrn6p and Rrn7p . . . RRN11
RSC1 . YGR056W Component of RSC complex RSC complex, which contains Rsc1p, catalzyes transfer of a histone octamer from a nucleosome to naked DNA, generating an octamer-DNA complex identical to a nucleosome . RSC, abundant chromatin remodeling complex RSC complex has DNA-dependent ATPase and ATPase-dependent nucleosome-destabilization activities RSC1
RSC2 . YLR357W Component of RSC complex . . RSC, abundant chromatin remodeling complex . RSC2
RSC4 . YKR008W Component of RSC complex . . RSC, abundant chromatin remodeling complex . RSC4
RSC6 . YCR052W Component of RSC complex . . RSC, abundant chromatin remodeling complex . RSC6
RSC8 . YFR037C Component of RSC complex . . RSC, abundant chromatin remodeling complex . RSC8
RTF1 . YGL244W Regulator of DNA binding properties of TBP . . . . RTF1
RTG1 . YOL067C bHLH-type transcription factor Involved in inter-organelle communication between mitochondria, peroxisomes, and nucleus . RTG transcription factor complex Basic helix-loop-helix domainHLH.jpg (831 Byte) RTG1
RTG3 . YBL103C bHLH-type transcription factor Involved in inter-organelle communication between mitochondria, peroxisomes, and nucleus . . Basic helix-loop-helix domainHLH.jpg (831 Byte) RTG3
SAP18 . YMR159C Protein similar to human SIN3 complex component Sap18 Human homolog Sap18 interacts directly with human transcriptional repressor Sin3 implicated in subepidermal blistering . . Possible coiled-coil proteinZIP.jpg (575 Byte)
Has similarity to AAA-proteins
SAP18
SAS2 . YMR127C Repressor protein Protein involved in silencing at HMR . . Single C2H2 finger Zn.jpg (575 Byte) SAS2
SAS3 YBF2 YBL052C Protein with histone acetyltransferase activity *Influences silencing at HMR locus
*Histone acetyltransferase activity toward histones H2A ,H3, and H4
. Catalytic subunit of yeast NuA3 histone acetylase complex Single C2H2-type zinc finger Zn.jpg (575 Byte) SAS3
SAS4 . YDR181C Silencing factor Protein involved in silencing at telomeres and the silent mating-type loci, HML and HMR . . . SAS4
SAS5 . YOR213C Silencing factor Protein involved in silencing at telomeres and the silent mating type loci . . . SAS5
SAS10 . YDL153C . Protein that derepresses HMR, HML and telomeres when overproduced . . . SAS10
SDS3 . YIL084C Transcriptional regulator Suppressor of silencing defect . . . SDS3
SEF1 . YBL066C Protein with similarity to transcription factors Involved in filamentous growth . . *Zn[2]-Cys[6] fungal-type binuclear cluster domain in the N-term regionZn.jpg (575 Byte)
*MHR (middle homology region) motif conserved in most fungal Zn[2]-Cys[6] proteins
SEF1
SFL1 . YOR140W Transcriptional repressor Transcriptional repressor interacting with SRB mediator subcomplex of RNA polymerase II; has domains homologous to myc oncoprotein and
yeast Hsf1p
. . . SFL1
SIG1 MOT2 (SSF1) NOT4 (CCL1) YER068W Transcriptional repressor involved in G-protein mediated pheromone signal transduction *CCR4 transcriptional complex has both positive and negative effects on gene transcription . CCR4 transcriptional complex contains Ccr4p, Pop2p, Dbf2p, Cdc39p, Cdc36p, Not3p, and Sig1p
May form a complex with Cdc36p/Not2p, Cdc39p/Not1p, and Not3p
*Physically associates with Not5p
*Interaction of Ccr4p with the NOT proteins is largely Pop2p-dependent
*Interaction between Pop2p and the NOT proteins is Ccr4p-independent
C4-type zinc finger proteinZn.jpg (575 Byte)
Involved in G-protein mediated pheromone signal transduction
SIG1
SIN3 SDI1 UME4 RPD1 CPE1 SDS16 GAM2 YOL004W Transcriptional regulator with negative and positive effects on individual gene expression . Does not directly bind to DNA . Tertiary structure of protein contains four paired amphipathic helices (PAH) which are similar to helix-loop-helix and TPR repeat proteinsHLH.jpg (831 Byte) TPR.jpg (827 Byte)
*Paired amphipathic helices are needed for transcription repressing activity
*Glutamine-rich region containing a run of alternating alanine and glutamine residues
*Eight potential glycosylation sites (NX(S/T))
*Two potential PEST regions (residues 1089-1113 and 1495-1532)
Regulates either directly or indirectly a wide range of genes, including SPO13, SPO11, TRK2, HO, PHO5, STA1, FUS1, STE2 STE3, and STE6
*Req. for transcription of Adr6p which in turn is req. for STA1 and ADH2 expression
*Req. for full repression and full activation of PHO5, STE6, and TY
SIN3
SIN4 GAL22 TSF3 BEL2 SSN4 SDI3 YNL236W Component of RNA polymerase holoenzyme and Kornberg's mediator subcomplex Exerts positive and negative effects on transcription of individual genes
Appears to affect global transcriptional regulation via effects on chromatin structure
Does not directly bind to DNA Mediator complex consists of Gal11p, Sin4p, Rgr1p, Srb2p, Srb4p, Srb5p, Srb6p, Srb7p, Srb8p, Srb9p, Anc1p, Ssn8p, Ssn3p, and other proteins *Mediator binds directly to a C-term domain (CTD) peptide and the CTD domain of Rpo21p is *Req. for mediator function in vitro
*All genes activated by Sin4p are activated by Snf2p
SIN4
SIP1 . YDR422C Multicopy suppressor of SNF1 *Negative regulator of GAL gene transcription
*Thought to act as an adaptor to promote activity of Snf1p for specific targets
. *May be part of complex with Mig1p and Ssn6p
*Snf1p-Snf4p interaction is bridged by a member of the Sip1p/Sip2p/Gal83p family
*Interacts with the regulatory C-term domain of Snf1p through an internal region conserved in the Sip1p/Sip2p/Gal83p family
*Conserved 80 amino acid sequence (ASC domain) in the C-term region that mediates interaction with Snf1p
*Interacts with Snf4p through the C-term ASC domain that is found in Sip1p, Sip2p, and Gal83p
SIP1
SIP2 . YGL208W Suppressor protein Dominant suppressor of some temperature-sensitive mutations in RPO21 and PRP4, interacts with Snf1p . SNF1 protein kinase complex Contains a predicted N-terminal myristylation site SIP2
SIP4 . YJL089W Transcriptional activator of gluconeogenic genes through CSRE elements; activated by Snf1p kinase, possesses a Zn[2]-Cys[6] fungal-type binuclear cluster domain Activity is regulated by glucose and depends on Snf1p activity
Phosphorylated in response to glucose
. . *Potential coiled-coil domain in the N-term region ZIP.jpg (575 Byte)
*Leucine zipper in the C-term region
*15% leucine and 12% asparagine
SIP4
SIR1 . YKR101W Silent mating-type regulator 1 *Protein involved in establishment of silencing at HMR and HML, not required for establishment of telomere silencing
*Plays a role in regulation of ribosomal protein genes in response to mutations in the secretory pathway and in response to mild heat shock
*Acts downstream of Orc1p in the silencing pathway
. *Complexes with other SIR proteins, Rap1p and histones H3 and H4 at telomeres for repression and subnuclear localization
*C-term interacts with Orc1p and Sir4p, but not Sir2p
. SIR1
SIR2 MAR1 YDL042C Silent mating-type regulator 2 Protein involved in maintenance of silencing of HMR, HML, and telomeres . May participate in a complex containing Sir3p, Sir2p, Sir4p, Rap1p, Hht1p, Hht2p, Hhf1p, and Hhf2p on DNA adjacent to telomeres and/or TG1-3/C1-3A
*Directly interacts with Sir3p, Sir4p, and Sir2p itself in vitro
Potential zinc finger domain Zn.jpg (575 Byte) and two potential leucine zipper domains ZIP.jpg (575 Byte) SIR2
SIR3 MAR2 CMT1 STE8 YLR442C Silent mating-type regulator 3 *Protein involved in maintenance of silencing of HMR, HML, and telomeres
*see SIR4
. May participate in a complex containing Sir3p, Sir2p, Sir4p, Rap1p, Hht1p, Hht2p, Hhf1p, and Hhf2p on DNA adjacent to telomeres and/or TG1-3/C1-3A
*Interaction with histones H3 or H4 req. 2 domains involving amino acids 623-762 and 808-910
see SIR4 SIR3
SIR4 STE9 ASD1 UTH2 YDR227W Silent mating-type regulator 4 *Coiled-coil protein involved in maintenance of silencing of HMR, HML, and telomeres
*Req. for both the integrity and subnuclear localization of yeast telomeres
*Req. for Sir3p assembly at telomeric foci
*Req. for deletion by illegitimate recombination and DNA end-joining in the pathway involving Hdf1p
*Req. for efficient joining of DNA ends with short complementary sequences from linear plasmids
*Req. for silencing of silent mating loci HMR and HML in both diploid and haploid strains
*Sir2p, Sir3p, and Sir4p, but not Sir1p are req. for rejoining of broken DNA ends in vivo to repair DNA double strand breaks
*Targeting to an internal chromosomal site by addition of a heterologous DNA-binding domain is sufficient to establish silencing of nearby genes that is dependent on SIR2, SIR3, and SIR4
. Sir3p and Sir4p both homodimerize and heterodimerize with each other
*May participate in a complex containing Sir3p, Sir2p, Sir4p, Rap1p, Hht1p, Hht2p, Hhf1p, and Hhf2p on DNA adjacent to telomeres and/or TG1-3/C1-3A
*Sir3p and Sir4p don't interact with histones H2A (Hta1p and Hta2p) or with histones H2B (Htb1p and Htb2p)
*Sir3p and Sir4p interact directly with the N-term regions of histones H3 (Hht1p and Hht2p) and H4 (Hhf1p and Hhf2p)
*Interacts with the C-term domain of Rap1p
*C-term half can bind Sir2p, Sir3p, Ubp3p, and a 69 kDa protein
*C-term domain interacts with Hdf1p
*C-term half interacts with the N-term half of Ris1p
* N-term domain inhibits its interaction with Sir3p
. SIR4
SIS2 HAL3 YKR072C . Protein involved in ion homeostasis, plays a role in resistance to elevated NaCl or LiCl . . Contains an extremely acidic C-terminal region SIS2
SKN7 POS9 BRY1 YHR206W Transcription factor *Homologous to response regulator proteins of bacterial 2-component systems and DNA-binding region of Hsf1p
*Probably involved in a two-component oxidative stress response regulation system
*Can activate G1 cyclins through the cell cycle box (CCB) element and Mlu1 cell cycle box (MCB) element
*Essential in the absence of SBF complex (Swi4p-Swi6p) and MBF complex (Mbp1p + Swi6p)
*Not involved in heat-shock response
*Probably regulates growth at the cell surface through a pathway that is parallel to the PKC1-MAP kinase pathway
. Interacts with Rho1p and Cdc42p both in vivo and in vitro *Potential coiled-coil domain ZIP.jpg (575 Byte)
*Potential "receiver motif" like those found in bacterial response regulators
*Receiver domain has no role in the oxidative stress response
*Mutation of aspartic acid residue in the receiver domain abolishes ability to suppress kre9 null mutation and to bypass SBF complex (Swi4p-Swi6p) mutations
*Response regulator domain is sufficient for gene activation
*ROCK-1/kinectin homology region is not req. for preventing growth of cdc42 at 35.5 deg, but req. for all other functions
SKN7
SKO1 . YNL167C Transcriptional repressor Suppressor of protein kinase A (PKA) overexpression, homolog of mammalian ATF/CREB transcriptional repressor DNA-binding protein . . SKO1
SMP1 . YBR182C Transcription factor of the MADS (Mcm1p, Agamous, Deficiens, SFR) box family . ACTACTA(T/A)4TAG *DNA-binding domain of Rlm1p and Smp1p can form heterodimers with an intermediate DNA-binding specificity *Putative DNA-binding dimerization domain (MADS box) SMP1
SNF1 CAT1 GLC2 CCR1 PAS14 HAF3 YDR477W . Serine/threonine protein kinase essential for derepression of glucose-repressed genes; acts with Snf4p . SNF1 protein kinase complex . SNF1
SNF2 SWI2 GAM1 TYE3 HAF1 (RIC1) YOR290C Component of SWI/SNF global transcription activator complex . . SWI/SNF complex, see SNF11 Contains a bromodomain in the C-term region
*Bromodomain is not req. for activity
*Snf11p-interaction domain (domain 1) is conserved in Drosophila brahma and human hbrm and BRG1 gene products
*Helicase-related domain of Snf2p is necessary but not sufficient for transcriptional activation
*7 motifs common to DNA-stimulated ATPases and DNA helicases
*ATPase sequence is distinct from helicase-family sequences
SNF2
SNF4 CAT3 YGL115W Protein involved in derepression of glucose-repressed genes, acts with Snf1p Enhances the activity of Snf1p . Held in a complex with Snf1p by a member of the Sip1p/Sip2p/Gal83p family
*Association with Snf1p is regulated by glucose as determined by a two-hybrid test, indicating a possible conformational change
*Interacts with Sip1p, Sip2p, and Gal83p through the C-term ASC domain independent of Snf1p
*Snf1p kinase domain and Snf4p bind to overlapping but distinct regions of the C-term regulatory domain of Snf1p
*Interaction between Snf4p and the C-term regulatory domain of Snf1p occurs even in the presence of glucose, indicating that the N-term kinase domain influences the physiological interactions
* In the presence of glucose, the N-term and the C-term domains of Snf1p interact with each other, suggesting that it is this interaction that prevents Snf1p from binding Snf4p in glucose
*Contains 4 cystathionine-beta-synthase domains
*Associates with Snf1p in cells grown in both high and low levels of glucose
*Autoinhibition of Snf1p kinase is antagonized by Snf4p
SNF4
SNF5 TYE4 HAF4 SWI10 YBR289W Component of SWI/SNF global transcription activator complex *Acts to assist gene-specific activators through chromatin remodeling
*Req. for positive regulation of HO and SUC2
. SWI/SNF complex, see SNF11TFcomplex.jpg (715 Byte) . SNF5
SNF6 . YHL025W Component of SWI/SNF global transcription activator complex *Req. for positive regulation of HO and SUC2 . SWI/SNF complex, see SNF11TFcomplex.jpg (715 Byte) N-term contains a nuclear localization signal
*Protein highly charged (middle third has 40% charged residues) but contains roughly equivalent numbers of acidic and basic residues
*Extreme N-term is basic (8 of 1st 16 residues) and extreme C-term is acidic (10 of last 32 residues)
*Neither the C-term glutamine-rich region nor acidic region is absolutely req. for Snf6p function
*C-term third contains a glutamine-rich region (residues 264-276)
SNF6
SNF11 . YDR073W Component of SWI/SNF global transcription activator complex; acts to assist gene-specific activators through chromatin remodeling *Requirement of Snf2p for activating transcription varies depending on the promoter, the activator and the number of binding sites near the promoter
*Not req.. for cell cycle box factor (CCBF) complex formation
*Req. for transcription of several inositol/choline-regulated genes involved in phospholipid biosynthesis, including CHO1, CHO2, OPI3, CKI1, and INO1
. SWI/SNF complex includes Swi1p, Snf2p, Swi3p, Snf5p, Snf6p, Snf11p, Swp59p, Swp61p, Swp73p, Swp82p, Anc1p, and other proteins
*Complex appears to act through altering interaction of H2A-H2B with DNA copies per cell
* Complex is present at only about 100 copies per cell
*Only about 10 genes are needed to acquire Swi/Snf complex for activation
*Purifies with a complex of 2 MDa (21183)

SWI-SNF complex introduces positive supercoils into circular DNA in the presence of bacterial topoisomerase I; changes in linking number are large (greater than 10) even when the complex and plasmid are in one-to-one ratio
*Ability of the SWI-SNF complex to introduce supercoils into circular DNA *Requires topoisomerase, but does not require ATP
*ADA/GCN5 may function together with SWI/SNF to facilitate transcription or regulate SWI/SNF activity at only a subset of genes

SWI/SNF complex is req.. for Gal4p to bind to and function at low-affinity nucleosomal binding sites in vivo, but not at the nucleosome-free binding site
*ADA/GCN5 may function together with SWI/SNF to facilitate transcription or regulate SWI/SNF activity at only a subset of genes
TFcomplex.jpg (715 Byte)

*28% Asn + Gln
*6 repeats of NA (T/N)A
*Req. for transcription of HO, INO1, ADH1, ADH2, SUC2, GAL1, GAL10
*Requires an intact nucleotide-binding motif for efficient transcriptional activation, suggesting that NTP hydrolysis is a normal function of Snf2p
*27kDa ICL1 promoter binding protein requires Snf2p for binding
*Not req. to activate reporter gene fused to cell cycle box (CCB) sequences (8469)
*Stimulates transcription of INO1 gene by counteracting the function of negative regulator Spt2p
*ADA/GCN5 may function together with SWI/SNF to facilitate transcription or regulate SWI/SNF activity at only a subset of genes
* Not req. for chromatin remodeling at the PHO5 gene
*Involved in coordinate regulation of phospholipid synthesis
*Plays a role in nucleosome positioning in SUC2 promoter
*Plays a role in nucleosome positioning in HIS4 promoter
SNF11
SNF12 SWP73 YNR023W Component of SWI-SNF global transcription activator complex Acts to assist gene-specific activators through chromatin remodeling . SWI/SNF complexTFcomplex.jpg (715 Byte) . SNF12
SOK2 . YMR016C Protein that can suppress mutants of cAMP-dependent protein kinase when overexpressed . . . . SOK2
SPO1 . YNL012W Transcriptional regulator involved in sporulation . . . Strong similarity to phospholipase B enzymes

*Req. for middle and late meiotic gene expression, meiotic chromosome segregation, spindle pole body duplication (Tevzadze GG, Esposito RE, Yeast 11:S126, 1995)
*Not req. for vegetative growth
*May act to regulate the expression of middle/late meiotic genes SPS2 and DIT1 (Tevzadze GG, Esposito RE, Yeast 11:S126, 1995)

SPO1
SPS18 SPX18 YNL204C Sporulation-specific zinc finger protein involved in activation of sporulation; member of Gcs1p/Glo3p/Sps18p family . . . *Contains one Glo-type CXXCX10CXXC (C2H2-type) zinc finger in N-term Zn.jpg (575 Byte)
*Potential nuclear localization (NLS) sequence
*Not induced by oleate, whereas SPS19 is induced by oleate
*UAS element which requires Ime2p for activation, is independent of Ume6p, and which is identical to the mid-sporulation element MSE
SPS18
SPT2 SIN1 YER161C HMG-like chromatin protein *Negative regulator of HO gene transcription
*Negative regulator of transcription of INO1
*Acts as a negative transcriptional regulator, but can under certain conditions act as a positive regulator
*May play a role in the fidelity of chromosome segregation, since sin1 mutants exhibit increased loss of chromosome III, but not chromosome V
Binds DNA non-specifically probably due to its high positive charge *Interacts with Cdc23p in vivo and in vitro
*Interacts with Snf1p through a conserved domain
*C-term portion of Spt2p is responsible for interaction with a protein that binds to the regulatory region of HO
*N-term portion of Spt2p associates with the part of Cdc23p containing tetratricopeptide (TPR) repeats TPR.jpg (827 Byte)
*HMG-box motif is req. for function and for dominant suppressor phenotype
*HMG-box motif in the middle of the molecule has DNA-binding properties
*N-term DNA-binding domain has at least one acetylation site
SPT2
SPT3 . YDR392W Component of the nucleosomal histone acetyltransferase (SAGA) complex, member of TBP class of SPT proteins *Req. for transcription from certain promoters including Ty1 and Ty2
*Req. to maintain optimal levels of functional centromere DNA-binding proteins
*Acts synergistically with Rsp5p to potentiate hormone-dependent transcriptional activation probably as coactivators
*Both ADA and SPT family members are independently req. for the presence and activity of the nucleosomal histone acetyltransferase (Spt-Ada-Gcn5-Acetyltransferase: SAGA) complex
Does not bind DNA *Interacts with TATA-binding protein (TBP/Spt15p) but does not bind DNA
*1.8 mDa nucleosomal histone acetyltransferase complex contains Gcn5p, Ada2p, Ngg1p, Spt7p, Spt20p, Spt3p, and Spt8p

SAGA transcriptional activator-histone acetyltransferase complex [E]; SLIK (SAGA-like) complex [E]; SAGA complex

TFcomplex.jpg (715 Byte)

. SPT3
SPT4 . YGR063C Protein involved in chromatin structure that influences expression of many genes *May be involved in transcription initiation
*Important for kinetochore function, but not as a structural component of the CEN DNA-protein complex
*Role in the function of Hir1p as a transcriptional repressor via the seven WD (WD-40) repeats of Hir1p
*Homologous human Spt4-Spt5 complex is also a transcription elongation factor in vitro
. *Part of a complex with Spt5p and Spt6p
*Spt4p/Spt5p/Spt6p complex may form a complex with histone H2A and H2B which can repress transcription
*No detectable binding to Spt6p in vitro
*Binds to Spt5p strongly in vitro
*Spt4p-Spt5p complex binds RNA pol II including Rpo21p
TFcomplex.jpg (715 Byte)
Has a zinc finger Zn.jpg (575 Byte) SPT4
SPT5 . YML010W Protein involved in chromatin structure that influences expression of many genes Has a role in the function of Hir1p as a transcriptional repressor via the seven WD (WD-40) repeats of Hir1p . Spt4p/Spt5p/Spt6p complex may form a complex with histone H2A and H2B which can repress transcription
*Part of a complex with Spt4p and Spt6p
*Strongly binds to Spt4p but weakly to Spt6p in vitro
*Spt4p-Spt5p complex binds RNA pol II including Rpo21p

SPT4-SPT5-SPT6 transcription factor complex

Acidic N-term and repeats of S-T/A-W-G-G-A/Q in the C-term SPT5
SPT6 SSN20 CRE2 YGR116W Protein involved in chromatin structure that influences expression of many genes *Role in the function of Hir1p as a transcriptional repressor via the seven WD (WD-40) repeats of Hir1p
*Homologous human Spt4-Spt5 complex is also a transcription elongation factor in vitro
. *Part of a complex with Spt5p and Spt6p
*Spt4p/Spt5p/Spt6p complex may form a complex with histone H2A and H2B which can repress transcription
*Interacts strongly with globular domain of histone H3 and weakly with histone H4-SPT4-SPT5-SPT6 transcription factor complex
TFcomplex.jpg (715 Byte)
. SPT6
SPT7 GIT2 YBR081C Component of the nucleosomal histone acetyltransferase (SAGA) complex Both ADA and SPT family members are independently req. for the presence and activity of the nucleosomal histone acetyltransferase (SAGA) complex . 1.8 mDa nucleosomal histone acetyltransferase complex contains Gcn5p, Ada2p, Ngg1p, Spt7p, Spt20p, Spt3p, and Spt8pTFcomplex.jpg (715 Byte) *Bromodomain not req. for activity SPT7
SPT8 . YLR055C Component of the nucleosomal histone acetyltransferase (SAGA) complex, member of TBP class of SPT proteins . . 1.8 mDa nucleosomal histone acetyltransferase complex contains Gcn5p, Ada2p, Ngg1p, Spt7p, Spt20p, Spt3p, and Spt8p
*Involved in an interaction between Spt3p and Spt15p

TFcomplex.jpg (715 Byte)
*Highly acidic amino terminus, with 49 of the first 76 amino acids being aspartate or glutamate SPT8
SPT10 CRE1 SUD1 YJL127C Protein that amplifies the magnitude of transcriptional regulation at various loci . . . . SPT10
SPT15 TBP1; TBP BTF1 TFIID YER148 Component of RNA polymerases I, II, and III; part of initiation factors TFIID and TFIIIB . . TFcomplex.jpg (715 Byte) . SPT15
SPT20 ADA5 AOE555 YOL148C Component of the nucleosomal histone acetyltransferase (SAGA) complex, member of TBP class of SPT proteins *Involved in the same pathway as the other ADA genes but has amore general function in transcription
*Req. for the maximal activation of the unfolded protein response (UPR) but not for the heat shock response of genes such as KAR2 and PDI1
*Both ADA and SPT family members are independently req. for the presence and activity of the nucleosomal histone acetyltransferase (SAGA) complex
*ADA/GCN5 may function together with SWI/SNF to facilitate transcription or regulate SWI/SNF activity at only a subset of genes
*Req. for efficient mating
. *Part of the ADA complex including Hfi1p, Ada2p, Ngg1p, Spt20p, and Gcn5p
*1.8 mDa nucleosomal histone acetyltransferase complex contains Gcn5p, Ada2p, Ngg1p, Spt7p, Spt20p, Spt3p, and Spt8p
May associate with Spt5p
*Physically associates with Spt3p, Spt7p, Spt8p, and Spt15p, but not with Toa2p or Rpb1p
TFcomplex.jpg (715 Byte)
Gln-rich, Ser-rich, and has acidic domain SPT20
SPT21 BUR4 YMR179W Protein that amplifies the magnitude of transcriptional regulation at various loci *Req. for transcription at HTA2-HTB2 and HHF2-HHT2, but not at the other two histone loci . . . SPT21
SPT23 . YKL020C Transcription factor *Required for transcription of a subset of genes; functionally redundant with Mga2p
*Both Spt23p and Mga2p may function by remodeling chromatin structure, like Snf2p and Snf5p
 . . *Both Spt23p and Mga2p contain at least two ankyrin repeats
*Transactivation domain is located between residues 26-75, which is acidic, nonhomologous to Mga2p, and req. for all its in vivo functions
SPT23
SRB2 HRS2 YHR041C RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit . . TFcomplex.jpg (715 Byte) . SRB2
SRB4 . YER022W RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit . . TFcomplex.jpg (715 Byte) . SRB4
SRB5 . YGR104C RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit . . TFcomplex.jpg (715 Byte) . SRB5
SRB6 . YBR253W RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit . . TFcomplex.jpg (715 Byte) . SRB6
SRB7 . YDR308C RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit . . TFcomplex.jpg (715 Byte) . SRB7
SRB8 NUT6 SSN5 GIG1 (ARE2) YCR080W YCR081W RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit . . TFcomplex.jpg (715 Byte) . SRB8
SRB9 (NUT8) SCA1 SSN2 UME2 YDR443C RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit . . TFcomplex.jpg (715 Byte) . SRB9
SRB10 SSN3 UME5; NUT7 (ARE1) GIG3 YPL042C RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit Cyclin-dependent serine/threonine protein kinase . TFcomplex.jpg (715 Byte) . SRB10
SRB11 SSN8 UME3 (NUT8) GIG2 YNL025C RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit Cyclin C homolog . TFcomplex.jpg (715 Byte) . SRB11
SSL1 . YLR005W TFIIH subunit (transcription initiation factor), factor B . . TFcomplex.jpg (715 Byte) . SSL1
SSL2 RAD25 LOM3 RTT4 UVS112 YIL143C DNA helicase component of RNA polymerase II transcription initiation factor TFIIH . . TFcomplex.jpg (715 Byte) . SSL2
SSN3 SRB10 YPL042C . . . . . SSN3
SSN6 CYC8 CRT8 YBR112C General repressor of transcription *Req. for repression of SUC2 expression mediated by upstream repression sequence URS[SUC2]
*Req. for repression of haploid-specific genes and MATa-specific genes through its interaction with Alpha2p, but not req. for proper donor selection during mating-type switching
Complex is brought to target promoters by sequence-specific DNA-binding proteins Tup1p-Ssn6p complex is estimated to be 440 kDa in size, previously reported to be part of a complex of 1,200 kDa
*Tup1p-Ssn6p complex has about one Ssn6p and three Tup1p molecules according to densitometry of stained SDS gels, previously reported as 1:4 ratio
*TPR region interacts specifically with the homeodomain of Alpha2p
*10 tetratricopeptide (TPR) repeats TPR.jpg (827 Byte)
*Protein functions with all but 3 or 4 of the 10 tetratricopeptide (TPR) repeats removed N-term of Tup1p is req. for its oligomerization and association with Ssn6p
*Tetratricopeptide (TPR) repeats 1-3 interact with Tup1p and are req. for repression of the a-specific genes
*Tetratricopeptide (TPR) repeats 4-7 are req. for the regulation of aerobically repressed genes
*Tetratricopeptide (TPR) repeats 8-10 are req. for regulation of the glucose repressed genes
*N-term is req. for its oligomerization and association with Ssn6p
SSN6
SSN8 SRB11 YNL025C RNA polymerase II holoenzyme and Kornberg's mediator (SRB) subcomplex subunit Cyclin C homolog . . . SSN8
SSU72 . YNL222W Protein interacting with TFIIB (Sua7p) Influences RNA polymerase II start-site selection in sua7 mutants . . . SSU72
STB1 . YNL309W Sin3p-binding protein *Involved in transcription regulation at START in the absence of Cln3p . Componet of SIN3 complex . STB1
STB2 . YMR053C Sin3p-binding protein . . Componet of SIN3 complex . STB2
STB3 . YDR169C Sin3p-binding protein . . Componet of SIN3 complex . STB3
STB4 . YMR019W Sin3p-binding protein . . Componet of SIN3 complex Zn[2]-Cys[6] fungal-type binuclear cluster domain in the N-terminal regionZn.jpg (575 Byte) STB4
STB5 . YHR178W Protein with similarity to transcription factors . . Componet of SIN3 complex . STB5
STB6 . YKL072W Sin3p-binding protein . . Componet of SIN3 complex . STB6
STE12 . YHR084W Transcription factor that binds to pheromone response element (PRE) *Regulates genesrequired for mating, also functions with Tec1p to regulate genes required for filamentous growth
*Acts downstream of STE11 and RAS2
*Phosphorylation in response to pheromone treatment is dependent upon a functional pheromone response MAP kinase pathway (29504)
*Req. for induction of TEC1 transcription
*Function of the sterile response element (SRE) in Ty1 is dependent on Ste12p and
*Req. for FLO11 expression
*Promotes pheromone-responsive transcription as a homomultimer
*Req. for pseudohyphal growth of nitrogen-starved diploid cells
*Req. for invasive growth into agar and filamentous growth in haploids
*Functions with Tec1p to induce pseudohyphal growth
Pheromone-response (PRE) element (TGAAAC) Mcm1p is a coactivator for DNA-binding by Ste12p
*Binds cooperatively with Tec1p to elements of the promoter termed filamentation and invasion response elements (FREs)
*Interacts with alpha1 protein to induce transcription of alpha-specific (a-factor-inducible) genes
*Directly inhibited by Dig1p and Dig2p

*Association with Fus3p requires Dig1p and Dig2p
*Maximum transcription activation of target genes by Ste12p requires a synergistic interaction between the pheromone induction domain and the transcription activating domain of Ste12p Mcm1p is a coactivator for DNA-binding by Ste12p
*Binds cooperatively with Tec1p to elements of the promoter termed filamentation and invasion response elements (FREs)
*Interacts with alpha1 protein to induce transcription of alpha-specific (a-factor-inducible) genes
*Directly inhibited by Dig1p and Dig2p
*Association with Fus3p requires Dig1p and Dig2p
*Maximum transcription activation of target genes by Ste12p requires a synergistic interaction between the pheromone induction domain and the transcription activating domain of Ste12p

*Degenerate homeodomain sequence in the DNA-binding region
*N-term 215 amino acids is responsible for DNA binding
* C-term domain interacts with Mcm1p
*Human SRF can bind to Ste12p if its sequence is modified in a specific domain that is shared with yeast Mcm1p
*C terminal residues 384 to 688 are important in both basal and induced transcription activation activity
*Residues 216 to 383 are necessary for proper transcription induction of target genes in response to pheromone, and is called the Pheromone Induction Domain
*Residues 301 to 335 are sufficient to confer responsiveness to the pheromone response cascade on a chimeric transcriptional activator protein
*Tyrosine residues at positions 310 and 317 are essential for repression of transcription activating activity in the absence of pheromone
*Dig1p and Dig2p bind to residues 301-317 of the pheromone response domain of Ste12p and inhibit its transcription activating activity
*Heavily phosphorylated prior to pheromone treatment
*Pheromone-treatment induces novel phosphorylations on Ste12p
*Phosphorylated on Ser and Thr in both pheromone-treated and untreated cells
* Phosphorylations on Ste12p that occur in response to pheromone treatment are only a minor proportion of the total phosphorylations on Ste12p
*Tryptic phosphopeptide analysis of Ste12p from cells not treated with pheromone generates seven major and one minor phosphopepetide
*Tryptic phosphopeptide analysis of Ste12p from pheromone-treated cells generates two new minor phosphopeptides in addition to the eight phosphopeptides observed in untreated cells
STE12
STH1 NPS1 YIL126W Component of chromatin remodeling complex (RSC) DNA helicase of the Snf2p family . RSC, abundant chromatin remodeling complex *Has a bromodomain STH1
SUA7 SOH4 TFIIB YPR086W RNA polymerase II transcription initiation factor TFIIB (factor e) *Functions in selection of site for transcription . . . SUA7
SUB1 TSP1 YMR039C Transcriptional coactivator May be involved in the release of TFIIB from the transcription complex during RNA polymerase II transcription . . . SUB1
SWI1 ADR6 GAM3 LPA1 YPL016W Component of SWI/SNF global transcription activator complex *Acts to assist gene-specific activators through chromatin remodeling SWI-SNF complex and ATP can increase nucleosomal DNA accessibility 100-fold and remodel one nucleosome every 4.5 min on an 11-mer nucleosome array
*SWI/SNF complex is req. for Gal4p to bind to and function at low-affinity nucleosomal binding sites in vivo, but not at the nucleosome-free binding site
*Req. for expression of STA1
*Req. for expression of SUC2, GAL1, GAL10, HO, INO1 and other genes
*Req. for transcription of ADH1 and ADH2
*Swi-Snf may antagonize Ssn6p-Tup1p by controlling chromatin remodeling activity
. *SWI/SNF complex includes Swi1p, Snf2p, Swi3p, Snf5p, Snf6p, Snf11p, Swp59p, Swp61p, Swp73p, Swp82p, Anc1p, and other proteins
*Complex appears to act through altering interaction of H2A-H2B with DNA copies per cell
* Complex is present at only about 100 copies per cell
*Only about 10 genes are needed to acquire Swi/Snf complex for activation
*Purifies with a complex of 2 MDa (21183)

SWI-SNF complex introduces positive supercoils into circular DNA in the presence of bacterial topoisomerase I; changes in linking number are large (greater than 10) even when the complex and plasmid are in one-to-one ratio
*Ability of the SWI-SNF complex to introduce supercoils into circular DNA *Requires topoisomerase, but does not require ATP
*ADA/GCN5 may function together with SWI/SNF to facilitate transcription or regulate SWI/SNF activity at only a subset of genes
TFcomplex.jpg (715 Byte)

*Highly acidic N-term domain
*Polyglutamine domain and polyasparagine regions
SWI1
SWI2 SNF2 GAM1 TYE3 HAF1 (RIC1) YOR290C see SNF2 . . SWI/SNF complex, see SWI1TFcomplex.jpg (715 Byte) . SWI2
SWI3 TYE2 YJL176C Component of SWI/SNF global transcription activator complex Acts to assist gene-specific activators through chromatin remodeling . SWI/SNF complex, see SWI1TFcomplex.jpg (715 Byte) Contains a SANT domain, which is common to Swi3p, Ada2p, Tfc5p, Isw1p, and Rsc8p SWI3
SWI4 ART1 YER111C Transcription factor *Both Swi4p and Swi6p are req.. for the in vivo protection of the Swi4p-Swi6p-dependent cell cycle box (SCB) sequences at any cell cycle stage
*Repression function of the SBF complex (Swi4p + Swi6p) may be regulated by the Cln2-Cdc28 kinase
*Neither SWI4 nor SWI6 are *Req. for activation of POL1 transcription through Mlu1 cell cycle box (MCB) sequences
*Both SWI4 and SWI6 are necessary in cells with CLN3 as only functional cyclin to promote passage through START
*CLN1 function is strongly dependent upon SWI4, and somewhat dependent upon SWI6
*CLN2 function is dependent upon SWI4, not but SWI6, function
*PCL1 transcription is regulated by the G1-specific transcription factor Swi4p
*Activates the unfolded protein response (UPR) pathway
*CLN2 contains three versions of SCB (Swi4p-dependent cell-cycle box) that are bound by a Swi4p and Swi6p containing complex
*An oligo which bears a SCB (Swi4p/Swi6p Cell cycle Box) element binds two different Swi4p-Swi6p complexes (U: upper and L: lower)
Binds to cell cycle box sequence CACGAAAA upstream of HO
*Swi4p, but not Swi6p, can bind SCBs (Swi4p/Swi6p Cell cycle Box) alone
*Binds with Swi6p to a cluster of 3 sequences in the CLN1 promoter which resemble MCB elements
*Collaborates with Swi6p to form the SBF (Swi4p + Swi6p) factor for regulation at the cell cycle box (CCB) element

*Protein complexes observed to specifically bind the Mlu1 cell-cycle box (MCB) are SWI6 dependent but SWI4 independent
*Swi4p and Swi6p associate through their C-termini
*Neither the leucine zipper motif nor the ankryin repeats of Swi6p are req. for Swi6p to interact with Swi4p
*Ankyrin repeats mediate the interaction with Clb2p-Cdc28p protein kinase complex

*2 ankyrin repeats ANK.jpg (828 Byte)
*Ankyrin motif of Swi4p is req. for in vivo function
*Ankyrin repeats are also called TPLH repeats, Cdc10-Swi6 repeats, notch repeat, and SWI6-ANK repeats
*C terminus is sufficient for interaction with Swi6p in vitro
*DNA binding domain of Swi4p lies between amino acids 36 and 168
*Terminal 149 amino acids are both necessary and sufficient to recruit Swi6p
*C-term 259 amino acids of Swi4p are necessary and sufficientfor interaction with Swi6p
SWI4
SWI5 . YDR146C Transcription factor for control of cell cycle-specific transcription of HO *Transmits signals for B cyclin kinase deactivation and the telophase to G1 transition in parallel with the Dbf2p pathway
*Swi5p-Sic1p pathway is dispensable but the Dbf2p-Dbf20p pathway is essential
Binds to DNA in cooperation with Pho2p Interacts with Pho2p only in the presence of DNA *Contains three C2H2-type zinc fingers domains Zn.jpg (575 Byte)
*Nuclear localization sequence from amino acids 633 to 682
*Residues 182-326 are needed to prevent daughter cell swtching
*Acidic domain between residues 470 and 503 contributes to promotion of transcription of the HO gene
SWI5
SWI6 SDS11 PSL8 YLR182W Transcription factor that participates in the SFB complex (Swi4p-Swi6p) *Reqired for regulation at the cell cycle box (CCB) and in the MBF complex (Mbp1p-Swi6p) for regulation at the Mlu1 cellcycle box (MCB)
*SBF complex (Swi4p-Swi6p) controls transcription of HO, CLN1, CLN2, PCL1, and PCL2
*MBF (Swi6p-Mbp1p) binding to MluI sites is cooperative
Does not bind DNA directly *Binding of SBF complex (Swi4p-Swi6p) to SCB sequences occurs in the G1 phase of the cell cycle and is greatly reduced in G2
*Interacts weakly with Clb2/Cdc28 kinase
*Swi4p and Swi6p associate through their C-termini
*Putative leucine zipper is not req. for interaction with Swi4p in vitro
*Activation of SBF complex (Swi4p-Swi6p) occurs at normal cell size in cln1 cln2 mutants
*CLN2 contains three versions of SCB (Swi4p-dependent cell-cycle box) bewteen -525 and -610 upstream of the predicted initiation codon which are bound by a Swi4p and Swi6p containing complex
Swi6p has a 21 amino acid leucine zipper from amino acids 585-606
*Variously reported to have 2 or 4 ankyrin domains ANK.jpg (828 Byte)
*Ankyrin repeats are also called TPLH repeats, Cdc10-Swi6 repeats, notch repeats, and SWI6-ANK repeats
*2 ankyrin repeats do not bind Clb2/Cdc28 kinase
*Ankyrin repeats may be targets for negative regulators
*C terminus is req. for interaction with Swi4p and Mbp1p C-termini
SWI6
TAF17 TAF20 SLM7 YMR236W Component of TAF(II) complex (TBP-associated protein complex) and the SAGA HAT complex . . TFcomplex.jpg (715 Byte) . TAF17
TAF19 FUN81 YML098W Component of TAF(II) complex (TBP-associated protein complex) and the SAGA HAT complex . . TFcomplex.jpg (715 Byte) . TAF19
TAF25 TAF23 YDR167W Component of TAF(II) complex (TBP-associated protein complex) and the SAGA complex *Required for activated transcription by RNA polymerase II . TFcomplex.jpg (715 Byte) . TAF25
TAF30 ANC1 TFG3 SWP29 CST10 YPL129W RNA polymerase II transcription initiation factor TFIIF (factor g), small subunit, *Component of RNA polymerase holoenzyme, Kornberg's mediator (SRB) subcomplex, and the SWI-SNF complex . TFcomplex.jpg (715 Byte) . TAF30
TAF40 . YML015C Component of TAF(II) complex (TBP-associated factor . . TFcomplex.jpg (715 Byte) . TAF40
TAF47 . YPL011C Component of the TAF(II) complex . . TFcomplex.jpg (715 Byte) . TAF47
TAF48 MPT1 TSG2 YMR005W Component of RNA polymerase II general transcription factor TFIID . . TFcomplex.jpg (715 Byte) . TAF48
TAF60 . YGL112C Component of TAF(II) complex (TBP-associated protein complex) and the SAGA complex *Required for activated transcription by RNA polymerase II . TFcomplex.jpg (715 Byte) . TAF60
TAF61 TAF68 YDR145W Component of TAF(II) complex (TBP-associated protein complex) and the SAGA complex *Required for activated transcription by RNA polymerase I . TBP-associated TAF[II] complex; SAGA transcriptional activator-histone acetyltransferase complex
TFcomplex.jpg (715 Byte)
. TAF61
TAF65 . YML114C Component of RNA polymerase II general transcription factor TFIID . . TFcomplex.jpg (715 Byte) . TAF65
TAF67 . YMR227C Component of the TAF(II) complex (TBP-associated factor), *Required for activated transcription by RNA polymerase II . TFcomplex.jpg (715 Byte) . TAF67
TAF90 . YBR198C Component of TAF(II) complex (TBP-associated protein complex) and the SAGA complex *Required for activated transcription by RNA polymerase II . TFcomplex.jpg (715 Byte) Member of WD (WD-40) repeat familyWD.jpg (569 Byte) TAF90
TAF145 TAF130 YGR274C Component of TAF(II) complex (TBP-associated protein complex) *Required for activated transcription by RNA polymerase II . TFcomplex.jpg (715 Byte) . TAF145
TAF150 TSM1 YCR042C Component of TAF(II) complex (TBP-associated protein complex) *Required for activated transcription by RNA polymerase II . TFcomplex.jpg (715 Byte) . TAF150
TBF1 TBFALPHA YPL128C Telomere binding protein
TTAGGG repeat-binding factor
Postulated to serve as an anchor for telomerase TTAGGG repeats
*Binds to TTAGGG sequence in the junction of subtelomeric X sequence and poly(G1-3A)
*Binding site usually located in a Y' or the STR-A element of the telomere
*At least one binding site in each chromosome end
. . TBF1
TBP1 SPT15 YER148W Component of RNA polymerases I, II, and III; part of initiation factors TFIID and TFIIIB . TATA boxes TFcomplex.jpg (715 Byte) . TBP1
TEA1 . YOR337W Ty1 enhancer activator . Multiple CGGNxCGG sites
or auxiliary regulatory proteins are req. for regulation, since ARG3 and ARGR3 genes with CGGN10CGG sequences are not regulated by Tea1p
*Binds to CGGNxCCG repeat in the Ty1 enhancer region which is a downstream regulatory element
*Binds to DNA at inverted CGG triplets spaced by 10 bp, resembling the binding site of Put3p and Cha4p
. *Zn[2]-Cys[6] fungal-type binuclear cluster domain in the N-term regionZn.jpg (575 Byte)
*C-term region contains an acidic domain that can mediate transcriptional activation Multiple CGGNxCGG sequences
*Dimerization motif in N-term region
TEA1
TEC1 ROC1 YBR083W Transcriptional activator involved with STE12 in pseudohyphal formation *Req. for pseudohyphal growth
*Req. for full Ty1 expression and Ty1-mediated gene activation
*Transcriptional activator with STE12 of TY1 through sterile responsive element (SRE) which is just downstream of 5' LTR
*Acts downstream of STE11 and RAS2
*Not involved in mating or sporulation
*Fus3p and Tec1p together are dispensable for filamentation and invasion, but individually they regulate haploid invasion
. *Functions with Ste12p to induce pseudohyphal growth, whereas without Tec1p Ste12p induces the mating phenotype
*Function of the sterile response element (SRE) in Ty1 is dependent on Ste12p and Tec1p
*Has no transcriptional activation domain TEC1
TFA1 . YKL028W RNA polymerase II transcription initiation factor TFIIE (factor a), 66 kDa subunit . . TFcomplex.jpg (715 Byte) . TFA1
TFA2 . YKR062W RNA polymerase II transcription initiation factor TFIIE (factor a), 43 kDa subunit . . TFcomplex.jpg (715 Byte) . TFA2
TFB1 . YDR311W Component of RNA polymerase II transcription initiation factor TFIIH (factor b), 75 kDa subunit . . TFcomplex.jpg (715 Byte) . TFB1
TFB2 LPH5 YPL122C Component of RNA polymerase II transcription initiation TFIIH (factor b), 55 kDa subunit . . TFcomplex.jpg (715 Byte) . TFB2
TFB3 RIG2 YDR460W Component of RNA polymerase II transcription initiation TFIIH (factor b), 38 kDa subunit . . TFcomplex.jpg (715 Byte) . TFB3
TFB4 . YPR056W RNA polymerase II transcription initiation factor TFIIH (factor b), 37 kDa subunit . . TFcomplex.jpg (715 Byte) . TFB4
TFC1 . YBR123C RNA polymerase III transcription initiation factor TFIIIC (tau), 95 kDa subunit . . . . TFC1
TFC3 TSV115 YAL001C RNA polymerase III transcription initiation factor TFIIIC (tau), 138 kDa subunit . . . . TFC3
TFC4 PCF1 YGR047C RNA polymerase transcription III initiation factor TFIIIC (tau), 131 kDa subunit, . . . 11 tetratricopeptide (TPR) repeatsTPR.jpg (827 Byte) TFC4
TFC5 . YNL039W Component of RNA polymerase III transcription factor TFIIIB, called B'' or TFIIIB90 . . . . TFC5
TFC6 . YDR362C RNA polymerase III transcription initiation factor TFIIIC (tau), 91-kDa subunit . . . . TFC6
TFC7 . YOR110W RNA Polymerase III transcription initiation factor TFIIIC (tau), 55 kDa subunit . . . . TFC7
TFC8 LPA10 YPL007C RNA Polymerase III transcription initiation factor TFIIIC (tau), 60 kDa subunit . . . . TFC8
TFG1 SSU71 YGR186W RNA polymerase II transcription initiation factor TFIIF (factor g), 105 kDa subunit . . Component of RNA polymerase holoenzyme complex
TFcomplex.jpg (715 Byte)
. TFG1
TFG2 . YGR005C RNA polymerase II transcription initiation factor TFIIF (factor g); 54 kDa subunit . . Component of RNA polymerase holoenzyme complex
TFcomplex.jpg (715 Byte)
. TFG2
TFG3 ANC1 YPL129W RNA polymerase II transcription initiation factor TFIIF (factor g), small subunit, . . Component of RNA polymerase holoenzyme, Kornberg's mediator (SRB) subcomplex, and the SWI-SNF complex
TFcomplex.jpg (715 Byte)
. TFG3
THI2 PHO6 YBR240C Regulatory protein for thiamine pyrophosphokinase (THI80) expression . . . Zinc-finger proteinZn.jpg (575 Byte) THI2
TIS11 CTH2 YLR136C Protein of the inducible CCCH zinc finger family . . . . TIS11
TOA1 . YOR194C RNA polymerase II transcription initiation factor TFIIA, large chain . . TFcomplex.jpg (715 Byte) . TOA1
TOA2 . YKL058W RNA polymerase II transcription initiation factor TFIIA 13.5 kD subunit . . TFcomplex.jpg (715 Byte) . TOA2
TSM1 TAF150 TAF(II)150 YCR042C Component of TAF(II) complex (TBP-associated protein complex) . . . . TSM1
TSP1 SUB1 YMR039C Transcriptional coactivator May be involved in the release of TFIIB from the transcription complex during transcription initiation
*Inhibits TBP-TFIIB-promoter complex formation (25739) enhances the activity of TFIIF
*Dephosphorylated recombinant Sub1p binds strongly to single-stranded DNA but less well to double-stranded DNA
*Dephosphorylated form interacts with TFIIB, whereas the phosphorylated form does not
*Dephosphorylation does not significantly affect the transcription stimulatory activity
Binds to single-stranded and double-stranded DNA Interacts strongly with Sua7p but weakly with TATA-binding protein (TBP/Spt15p) in vitro *Contains a single-stranded DNA-binding motif
*50% of amino acids are charged
TSP1
TUF1 . . . . YNNYYACCCG . . TUF1
TUP1 SFL2 AER2 ROX4 CYC9 FLK1 UMR7 AMM1 (AAR1) CRT4/C YCR084C General repressor of transcription (with Ssn6p), member of WD (WD-40) repeat family

With Ssn6p regulates about 60 known genes including glucose regulation, oxygen stress response and DNA damage
*Genes whose expression is directly or indirectly repressed by Tup1p include those encoding hexose transporters, alpha-glucosidases, and mating pheromones, as well as DNA damage-inducible genes and genes involved in flocculation
*Involved in repression of heme-regulated and glucose-repressed genes Ssn6p-Tup1p complex represses DIT1 and DIT2 expression during vegetative growth
*Req. for alpha2 repression of a-specific genes
*Swi-Snf may antagonize Ssn6p-Tup1p by controlling chromatin remodeling activity
*Ssn6p-Tup1p complex is not req. for the establishment of nucleosome positioning at the SUC2 promoter in swi1 mutants
*Req. for repression of RME1 expression in a/alpha diploid cells
*Req. for repression of haploid-specific genes and MATa-specific genes through its interaction with Alpha2p, but not req.. for proper donor selection during mating-type switching involved in maintenance of IME1 repression in haploid cells independently of Rme1p

GET Results from microarray analysis

. Interacts with Mig1p repressor, Rox1p repressor, and alpha2 repressor/Mcm1p
*Exists as a tetramer in the absence of Ssn6p
*Tup1p-Ssn6p complex is estimated to be 440 kDa in size, previously reported to be part of a complex of 1,200 kDa
*Tup1p-Ssn6p complex has about one Ssn6p and three Tup1p molecules
*Interaction with histones is relatively insensitive to ionic strength
*Single WD (WD-40) repeat is sufficient for binding to Alpha2p but all repeats are needed for specificity
*Interacts with Alpha2p through WD (WD-40) repeats
*Directly interacts with the N-term tails of underacetylated histone H3 and H4
*Tup1p-Ssn6p complex can act directly on the SUC2 promoter even in the absence of the GC-box regions SUC2A and SUC2B DNA elements
*Brought to target promoters by sequence-specific DNA-binding proteins such as Alpha2p-Mcm1p, Rox1p, Mig1p
WD-40 repeat containing protein with 7 C-term WD-40 repeatsWD.jpg (569 Byte)
*WD (WD-40) repeats serve different roles for repression of different regulons
*Polyglutamine runs in the N-term region
*N-term 200 amino acids of Tup1 are req. for partial repression of aerobic and catabolite repressed genes
*Histone-binding domain coincides with the repression domain
*First 72 amino acids are req.. for oligomerization and association with Ssn6p
*Mutations that specifically affect alpha2-mediated repression change amino acids conserved among Tup1 homologs from other yeasts, but not among WD (WD-40) proteins in general
*Mutations that specifically affect alpha2-mediated repression changeamino acids that lie on one face of a predicted beta propeller formed by its WD (WD-40) repeats
TUP1
UGA3 . YDL170W Transcriptional activator for GABA catabolic genes *Regulates UGA4, UGA1, and UGS2
*Not induced by oleate, Pip2p, or Oaf2p
. . *Zn[2]-Cys[6] fungal-type binuclear cluster domain in N-term region Zn.jpg (575 Byte)
*Promoter contains a putative oleate response element, but it is probably not functional
UGA3
UME1 WTM3 LPI7 YPL139C Negative regulator of meiosis . . . WD repeat-containing transcription modulator WD.jpg (569 Byte) UME1
UME6 CAR80 RIM16 NIM2 CARGR1 CARGRI YDR207C Negative transcriptional regulator involved in nitrogen repression and induction of meiosis *Negative regulator of most early meiotic genes and HSP82, INO1, FOX3, and CAR1
*Involved in Ime1p-dependent induction of genes with URS1 (5'AGCCGCCGA3') promoter sequences
*Req. for negative regulation at sites that bind Rfa1p/ Rfa2p/ Rfa3p complex
*May be converted from a negative to a positive regulator by Ime1p
*Negatively regulates CAR1, inositol metabolism genes, several sporulation genes, and others
*Transcriptional repression may proceed by Ume6p binding to Sin3p, which then binds to Rpd3p, causing repression of transcription through core histone deacetylation
*Induction of Cho1p production does not involve Ime1p
*Represses Ino1p production through the URS1 promoter region
*Enhances basal level expression of PHR1 during the fermentative stage of cell growth
*Req. for glucose repression of POT1/FOX3
*Req. for derepression of CHO1, CHO2, and OPI3
*Req. for full expression of INO2
*Req. for PHR1 induction in late exponential phase immediately preceding the diauxic shift
*Req. for Ime1p induction of IME2
*Glucose repression of ACS1 is partly controlled by a balance of the negative regulator Ume6p and the pleiotropic positive factor Abf1p
AGCCGCCA

MSE: 5'HDVKNCACAAAAD

Transcriptional activation by Ume6p *Requires Rim15p
*Transcriptional repression by Ume6p involves recruitment of a complex containing Sin3p and Rpd3p to target promoters
*Glucose or ammonia reduces interaction between Ume6p and Ime1p
*Interaction between Ume6p and Sin3p does not require Rpd3p
*Requires Sin3p and Rpd3p histone deacetylase for the function of the Ume6p repression domain
*Zn[2]-Cys[6] fungal-type binuclear cluster domain in the C-term region beginning at position 770Zn.jpg (575 Byte)
*87 amino acid region, residues 508-594, is req. and sufficient to mediate the repression function
*ATP/GTP-binding site motif A (P-loop)
UME6
WTM1 . YOR230W Transcriptional modulator involved in meiotic regulation and silencing Represses target gene transcription when tethered to DNA
* WTM genes negatively regulate silencing at HMR and telomere
. *Interacts with Wtm2p but not with Ume1p
*Part of a large complex
*WD repeat-containing transcription modulator WD.jpg (569 Byte)
*Localizes to the nucleus, but is not part of the nuclear pore complex
*Protein abundance increases during meiosis
WTM1
WTM2 . YOR229W Transcriptional modulator involved in meiotic regulation and silencing . . . *Member of WD (WD-40) repeat familyWD.jpg (569 Byte)
*Similar to WTM1
WTM2
XBP1 . YIL101C Stress-induced transcriptional repressor *Transcriptionally induced by heat shock, high osmolarity, oxidative stress, DNA damage, and glucose starvation
*Functions as transcriptional repressor when tethered to the LexA DNA-binding domain
GCCTCGA (G/A)G-(C/A)G (A/G) . *Binding sites exist in promoters of CCL1, YVH1, STV1, NAT1, ACH1, APM4, FHL1, RRN6, SSB1, FAB1, CCE1, RIB3, GND1, ILV3, SEC9, LIP5, ADE6, VAP1, CLN1, HOG1, REB1, STE50, MCM3, DOA4, YAR1, and HSP82 XBP1
YAP1 SNQ3 PAR1 (PDR4) YML007W Yeast activator protein of the basic leucine zipper (bZIP) family *Req. for activity of the stress response (STRE) element (CCCCT) but does not bind STRE directly
*Not involved in regulation from the heat shock element (HSE)
*Mutation in basic leucine zipper (bZIP) domain destroy DNA binding and function in cadmium resistance
*Not req..for superoxide induction of GSH1
*Req. for hydrogen peroxide induction of SSA1
*Req. for both the adaptive response and constitutive survival to malondialdehyde
*Transcriptional activity is inhibited by protein kinase A, whereas Gcn4ptranscription activity is stimulated by protein kinase A Rregulates levels of Sod1p, Zwf1p, Ycf1p, Trx2p, and Ttr1p
*Response of Yap1p to oxidative stress appears to involve a post-translational modification of the protein leading to increased binding to DNA
*Does not regulate TPS1, TPS2 or TPS3
*Senses oxidative stress conditions generated by hydrogen peroxide and diamide differentially

GET Results from microarray analysis

TTACTAA . *DNA-binding site (TTACTAA) is different from AP-1 site (TGACTCA)
Member of the jun family of basic leucine zipper (bZIP) transcriptional activators, which includes Yap1p and Cad1p ZIP.jpg (575 Byte)
*Mammalian members of the jun family of basic leucine zipper (bZIP) transcriptional activators bind the AP-1 site (TGACTCA)
*N-term domain has similarity to the C-term DNA-binding domain of Gcn4p
*Three repeats of Cys-Ser-Glu at the C-term are req. for normal regulation of Yap1p function during oxidative stress
*Overproduction increases transcriptional levels of 17 genes, including YAP1, ATR1, OYE2, OYE3, MDH2, FLR1, FRM2, ECM4, and genes withsimilarity to aryl-alcohol oxidoreductases or to dehydrogenases/oxidoreductases in general
YAP1
YAP2 CAD1 YDR423C Yeast activator protein of the basic leucine zipper (bZIP) family, see CAD1 . . . . YAP2
YAP3 SNQ3 PAR1 (PDR4) YML007W Transcriptional activator of the basic leucine zipper (bZIP) family, involved in oxidative stress response . . . . YAP3
YAP4 CIN5 YOR028C Yeast activator protein of the basic leucine zipper (bZIP) family, see CIN5 . . . . YAP4
YAP5 . YIR018W Yeast activator protein of the basic leucine zipper (bZIP) family . . . . YAP5
YAP6 . YDR259C Yeast activator protein of the basic leucine zipper (bZIP) family, involved in salt tolerance . TTACTAA . DNA-binding site (TTACTAA) is different from AP-1 site (TGACTCA) YAP6
YAP7 . YOL028C Yeast activator protein of the basic leucine zipper (bZIP) family . . . . YAP7
YAP8 ARR1 YPR199C Yeast activator protein of the basic leucine zipper (bZIP) family, see ARR1 . . . . YAP8
ZAP1 . YJL056C Zinc-responsive transcriptional activator of zinc uptake system genes Transcription is autoregulated in response to zinc Binds to the ZRT1 promoter region in vitro . An N-term 706 amino acid region contains two potential acidic activation domains and contains 12% Cys and His residues
*C-term 174 amino acid region contains five C2H2 zinc finger domains of the TFIIIA type Zn.jpg (575 Byte)
*Consensus nuclear localization (NLS) sequence
*Amino acid configuration has acidic regions similar to those of other transcription factors
ZAP1
ZDS1 NRC1 CES1 CKM1 OSS1 YMR273C Regulator for SWE1 and CLN2 transcription, Sir3p phosphorylation, rDNA recombination and silencing, and life span . . . . ZDS1
ZDS2 CES4 YML109W Factor involved in regulation of transcriptional silencing and life span, multicopy suppressor of sin4 . . . . ZDS2