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RPB5 RPB5 TAF5 TAF5 PAF1 PAF1 FRM2 FRM2 HBN1 HBN1 TAF2 TAF2 KIN28 KIN28 RPO21 RPO21 TFB5 TFB5 TAF12 TAF12 TFB1 TFB1 RPB7 RPB7 TFB3 TFB3 RTR1 RTR1 SPT15 SPT15 DST1 DST1 RPB9 RPB9 SPT16 SPT16 RTF1 RTF1 TFG2 TFG2 SPT4 SPT4 SPT6 SPT6 TFG1 TFG1 TAF1 TAF1 RPC10 RPC10 RPB3 RPB3 SSL2 SSL2 CTK2 CTK2 RPB4 RPB4 TFA1 TFA1 TOA2 TOA2 CTK1 CTK1 ELF1 ELF1 TFA2 TFA2 SSL1 SSL1 BUR2 BUR2 CDC73 CDC73 SPT5 SPT5 TAF11 TAF11 POB3 POB3 TAF13 TAF13 CTK3 CTK3 TAF8 TAF8 TAF4 TAF4 TAF7 TAF7 TAF9 TAF9 FCP1 FCP1 RPB11 RPB11 CTR9 CTR9 LEO1 LEO1 RPB2 RPB2 TOA1 TOA1 RPB10 RPB10 TFB6 TFB6 TAF3 TAF3 MRX11 MRX11 TFB2 TFB2 TAF14 TAF14 CCL1 CCL1 TFB4 TFB4 SUA7 SUA7 SPN1 SPN1 SGV1 SGV1
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
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a 3D structure is known or predicted
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RPB5RNA polymerase subunit ABC27; common to RNA polymerases I, II, and III; contacts DNA and affects transactivation; Belongs to the archaeal RpoH/eukaryotic RPB5 RNA polymerase subunit family. (215 aa)
TAF5Subunit (90 kDa) of TFIID and SAGA complexes; involved in RNA polymerase II transcription initiation and in chromatin modification. (798 aa)
PAF1RNA polymerase II-associated protein 1; Component of the Paf1p complex involved in transcription elongation; binds to and modulates the activity of RNA polymerases I and II; required for expression of a subset of genes, including cell cycle-regulated genes; involved in SER3 repression by helping to maintain SRG1 transcription-dependent nucleosome occupancy; homolog of human PD2/hPAF1. (445 aa)
FRM2Fatty acid repression mutant protein 2; Type II nitroreductase, using NADH as reductant; mutants are defective in fatty acid mediated repression of genes involved in fatty acid biosynthesis indicative of a role in lipid signaling; involved in the oxidative stress response; transcription induction by cadmium and selenite indicates a possible role in the metal stress response; expression induced in cells treated with the mycotoxin patulin. (193 aa)
HBN1Putative nitroreductase HBN1; Protein of unknown function; similar to bacterial nitroreductases; green fluorescent protein (GFP)-fusion protein localizes to the cytoplasm and nucleus; protein becomes insoluble upon intracellular iron depletion; protein abundance increases in response to DNA replication stress. (193 aa)
TAF2TFIID subunit (150 kDa); involved in RNA polymerase II transcription initiation. (1407 aa)
KIN28Serine/threonine-protein kinase KIN28; Serine/threonine protein kinase, subunit of transcription factor TFIIH; involved in transcription initiation at RNA polymerase II promoters; phosphorylates Ser5 residue of the PolII C-terminal domain (CTD) at gene promoters; relocalizes to the cytosol in response to hypoxia. (306 aa)
RPO21RNA polymerase II largest subunit B220; part of central core; phosphorylation of C-terminal heptapeptide repeat domain regulates association with transcription and splicing factors; similar to bacterial beta-prime. (1733 aa)
TFB5Component of RNA polymerase II general transcription factor TFIIH; involved in transcription initiation and in nucleotide-excision repair; relocalizes to the cytosol in response to hypoxia; homolog of Chlamydomonas reinhardtii REX1-S protein involved in DNA repair; Belongs to the TFB5 family. (72 aa)
TAF12Subunit (61/68 kDa) of TFIID and SAGA complexes; involved in RNA polymerase II transcription initiation and in chromatin modification, similar to histone H2A; overexpression of the human ortholog, TAF12, an oncogene involved in the formation of choroid plexus carcinomas, results in dosage chromosomal instability (dCIN) in a human cell line similar to the dCIN observed in yeast overexpressors. (539 aa)
TFB1Subunit of TFIIH and nucleotide excision repair factor 3 complexes; required for nucleotide excision repair, target for transcriptional activators; relocalizes to the cytosol in response to hypoxia. (642 aa)
RPB7RNA polymerase II subunit B16; forms dissociable heterodimer with Rpb4p; Rpb4/7 dissociates from RNAPII as Ser2 CTD phosphorylation increases; Rpb4/7 regulates cellular lifespan via mRNA decay process; involved in recruitment of 3'-end processing factors to transcribing RNA polymerase II complex, export of mRNA to cytoplasm under stress conditions; also involved in translation initiation. (171 aa)
TFB3Subunit of TFIIH and nucleotide excision repair factor 3 complexes; involved in transcription initiation, required for nucleotide excision repair; ring finger protein similar to mammalian CAK and TFIIH subunit. (321 aa)
RTR1RNA polymerase II subunit B1 CTD phosphatase RTR1; CTD phosphatase; dephosphorylates S5-P in the C-terminal domain of Rpo21p; has a cysteine-rich motif required for function and conserved in eukaryotes; shuttles between the nucleus and cytoplasm; RTR1 has a paralog, RTR2, that arose from the whole genome duplication; Belongs to the RPAP2 family. (226 aa)
SPT15TATA-binding protein (TBP); general transcription factor that interacts with other factors to form the preinitiation complex at promoters; essential for viability, highly conserved; yeast gene can complement mutations in human homolog TBP. (240 aa)
DST1General transcription elongation factor TFIIS; enables RNA polymerase II to read through blocks to elongation by stimulating cleavage of nascent transcripts stalled at transcription arrest sites; maintains RNAPII elongation activity on ribosomal protein genes during conditions of transcriptional stress; Belongs to the TFS-II family. (309 aa)
RPB9RNA polymerase II subunit B12.6; contacts DNA; mutations affect transcription start site selection and fidelity of transcription. (122 aa)
SPT16Subunit of the heterodimeric FACT complex (Spt16p-Pob3p); FACT associates with chromatin via interaction with Nhp6Ap and Nhp6Bp, and reorganizes nucleosomes to facilitate access to DNA by RNA and DNA polymerases; specifically required for diauxic shift-induced H2B deposition onto rDNA genes; mutations cause reduced nucleosome occupancy over highly transcribed regions; coregulates transcription with Mot1p through preinitiation complex assembly and nucleosome organization. (1035 aa)
RTF1RNA polymerase-associated protein RTF1; Subunit of RNAPII-associated chromatin remodeling Paf1 complex; regulates gene expression by directing cotranscriptional histone modification, influences transcription and chromatin structure through several independent functional domains; directly or indirectly regulates DNA-binding properties of Spt15p and relative activities of different TATA elements; involved in transcription elongation as demonstrated by the G-less-based run-on (GLRO) assay. (558 aa)
TFG2TFIIF (Transcription Factor II) middle subunit; involved in both transcription initiation and elongation of RNA polymerase II; homologous to human RAP30. (400 aa)
SPT4Spt4p/5p (DSIF) transcription elongation factor complex subunit; the Spt4/5 complex binds to ssRNA in a sequence-specific manner, and along with RNAP I and II has multiple roles regulating transcriptional elongation, RNA processing, quality control, and transcription-coupled repair; localizes to kinetochores and heterochromatin, influencing chromosomal dynamics and silencing; required for transcription through long trinucleotide repeats in ORFs and non-protein coding regions. (102 aa)
SPT6Transcription elongation factor SPT6; Nucleosome remodeling protein; functions in various aspects of transcription, chromatin maintenance, and RNA processing; required for the maintenance of chromatin structure during transcription in order to inhibit transcription from promoters within the coding region; required for H3K36 trimethylation but not dimethylation by Set2p. (1451 aa)
TFG1TFIIF (Transcription Factor II) largest subunit; involved in both transcription initiation and elongation of RNA polymerase II; homologous to human RAP74. (735 aa)
TAF1TFIID subunit, involved in RNA pol II transcription initiation; possesses in vitro histone acetyltransferase activity but its role in vivo appears to be minor; involved in promoter binding and G1/S progression; relocalizes to the cytosol in response to hypoxia. (1066 aa)
RPC10RNA polymerase subunit ABC10-alpha, found in RNA pol I, II, and III; relocalizes from nucleolus to cytoplasm upon DNA replication stress. (70 aa)
RPB3RNA polymerase II third largest subunit B44; part of central core; similar to prokaryotic alpha subunit. (318 aa)
SSL2General transcription and DNA repair factor IIH helicase subunit XPB; Component of RNA polymerase transcription factor TFIIH holoenzyme; acts as dsDNA-dependent translocase in context of TFIIH, unwinds DNA strands during initiation and promotes transcription start site (TSS) scanning; has DNA-dependent ATPase/helicase activity; interacts functionally with TFIIB, has roles in TSS selection and gene looping to juxtapose initiation and termination regions; involved in DNA repair; relocalizes to cytosol under hypoxia; homolog of human ERCC3; Belongs to the helicase family. RAD25/XPB subfamily. (843 aa)
CTK2Beta subunit of C-terminal domain kinase I (CTDK-I); which phosphorylates both RNA pol II subunit Rpo21p to affect transcription and pre-mRNA 3' end processing, and ribosomal protein Rps2p to increase translational fidelity; relocalizes to the cytosol in response to hypoxia. (323 aa)
RPB4RNA polymerase II subunit B32; forms dissociable heterodimer with Rpb7p; Rpb4/7 dissociates from RNAPII as Ser2 CTD phosphorylation increases; Rpb4/7 regulates cellular lifespan via mRNA decay process; involved in recruitment of 3'-end processing factors to transcribing RNAPII complex, export of mRNA to cytoplasm under stress conditions; also involved in translation initiation. (221 aa)
TFA1Transcription initiation factor IIE subunit alpha; TFIIE large subunit; involved in recruitment of RNA polymerase II to the promoter, activation of TFIIH, and promoter opening. (482 aa)
TOA2TFIIA small subunit; involved in transcriptional activation, acts as antirepressor or as coactivator; required, along with Toa1p, for ribosomal protein gene transcription in vivo; homologous to smallest subunit of human and Drosophila TFIIA; protein abundance increases in response to DNA replication stress. (122 aa)
CTK1Catalytic (alpha) subunit of C-terminal domain kinase I (CTDK-I); phosphorylates both RNA pol II subunit Rpo21p to affect transcription and pre-mRNA 3' end processing, and ribosomal protein Rps2p to increase translational fidelity; required for H3K36 trimethylation but not dimethylation by Set2p; suggested stimulatory role in 80S formation during translation initiation; similar to the Drosophila dCDK12 and human CDK12 and probably CDK13; Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. CDC2/CDKX subfamily. (528 aa)
ELF1Transcription elongation factor with a conserved zinc finger domain; implicated in the maintenance of proper chromatin structure in actively transcribed regions; deletion inhibits Brome mosaic virus (BMV) gene expression. (145 aa)
TFA2TFIIE small subunit; involved in RNA polymerase II transcription initiation; Belongs to the TFIIE beta subunit family. (328 aa)
SSL1Subunit of the core form of RNA polymerase transcription factor TFIIH; has both protein kinase and DNA-dependent ATPase/helicase activities; essential for transcription and nucleotide excision repair; interacts with Tfb4p; Belongs to the GTF2H2 family. (461 aa)
BUR2Protein BUR2; Cyclin for the Sgv1p (Bur1p) protein kinase; Sgv1p and Bur2p comprise the CDK-cyclin BUR kinase complex which is involved in transcriptional regulation through its phosphorylation of the carboxy-terminal domain (CTD) of the largest subunit of RNA polymerase II (Rpo21p); BUR kinase is also involved in the recruitment of Spt6p to the CTD at the onset of transcription. (395 aa)
CDC73Cell division control protein 73; Component of the Paf1p complex; binds to and modulates the activity of RNA polymerases I and II; required for expression of certain genes, modification of some histones, and telomere maintenance; involved in transcription elongation as demonstrated by the G-less-based run-on (GLRO) assay; protein abundance increases in response to DNA replication stress; human homolog, parafibromin, is a tumour suppressor linked to breast, renal and gastric cancers; Belongs to the CDC73 family. (393 aa)
SPT5Spt4p/5p (DSIF) transcription elongation factor complex subunit; the Spt4/5 complex binds to ssRNA in a sequence-specific manner, and in concert with RNAP I and II has multiple roles regulating transcriptional elongation, RNA processing, quality control, and transcription-coupled repair; interacts with DNA upstream of RNAPII and the non-template strand of the transcription bubble; Spt5p is the only transcription elongation factor conserved in all domains of life. (1063 aa)
TAF11TFIID subunit (40 kDa); involved in RNA polymerase II transcription initiation, similar to histone H3 with atypical histone fold motif of Spt3-like transcription factors; Belongs to the TAF11 family. (346 aa)
POB3Subunit of the heterodimeric FACT complex (Spt16p-Pob3p); FACT associates with chromatin via interaction with Nhp6Ap and Nhp6Bp, and reorganizes nucleosomes to facilitate access to DNA by RNA and DNA polymerases; protein abundance increases in response to DNA replication stress; Belongs to the SSRP1 family. (552 aa)
TAF13TFIID subunit (19 kDa); involved in RNA polymerase II transcription initiation, similar to histone H4 with atypical histone fold motif of Spt3-like transcription factors. (167 aa)
CTK3Gamma subunit of C-terminal domain kinase I; CTDK-I phosphorylates RNA polymerase II subunit Rpo21p to affect transcription and pre-mRNA 3' end processing, and also phosphorylates ribosomal protein Rps2p to increase translational fidelity; protein abundance increases in response to DNA replication stress. (296 aa)
TAF8TFIID subunit (65 kDa); involved in RNA polymerase II transcription initiation. (510 aa)
TAF4TFIID subunit (48 kDa); involved in RNA polymerase II transcription initiation; potential Cdc28p substrate. (388 aa)
TAF7TFIID subunit (67 kDa); involved in RNA polymerase II transcription initiation. (590 aa)
TAF9Subunit (17 kDa) of TFIID and SAGA complexes; involved in RNA polymerase II transcription initiation and in chromatin modification, similar to histone H3. (157 aa)
FCP1Carboxy-terminal domain (CTD) phosphatase; essential for dephosphorylation of the repeated C-terminal domain of the RNA polymerase II large subunit (Rpo21p); relocalizes to the cytosol in response to hypoxia. (732 aa)
RPB11RNA polymerase II subunit B12.5; part of central core; similar to Rpc19p and bacterial alpha subunit. (120 aa)
CTR9RNA polymerase-associated protein CTR9; Component of the Paf1p complex involved in transcription elongation; binds to and modulates the activity of RNA polymerases I and II; required for expression of a subset of genes, including cyclin genes; involved in SER3 repression by helping to maintain SRG1 transcription-dependent nucleosome occupancy; contains TPR repeats. (1077 aa)
LEO1RNA polymerase-associated protein LEO1; Component of the Paf1 complex; which associates with RNA polymerase II and is involved in histone methylation; plays a role in regulating Ty1 transposition; involved in transcription elongation as demonstrated by the G-less-based run-on (GLRO) assay. (464 aa)
RPB2RNA polymerase II second largest subunit B150; part of central core; similar to bacterial beta subunit. (1224 aa)
TOA1TFIIA large subunit; involved in transcriptional activation, acts as antirepressor or as coactivator; required, along with Toa2p, for ribosomal protein gene transcription in vivo; homologous to largest and second largest subunits of human and Drosophila TFIIA; Belongs to the TFIIA subunit 1 family. (286 aa)
RPB10RNA polymerase subunit ABC10-beta; common to RNA polymerases I, II, and III. (70 aa)
TFB6Uncharacterized protein YOR352W; Subunit of TFIIH complex; facilities dissociation of the Ssl2p helices from TFIIH; expression levels regulated by Arg5,6p; green fluorescent protein (GFP)-fusion protein localizes to the cytoplasm and nucleus. (343 aa)
TAF3TFIID subunit (47 kDa); involved in promoter binding and RNA polymerase II transcription initiation; Belongs to the TAF3 family. (353 aa)
MRX11MIOREX complex component 11; Protein that associates with mitochondrial ribosome; SWAT-GFP and mCherry fusion proteins localize to the mitochondria; involved in maintenance of telomere length. (207 aa)
TFB2Subunit of TFIIH and nucleotide excision repair factor 3 complexes; involved in transcription initiation, required for nucleotide excision repair, similar to 52 kDa subunit of human TFIIH. (513 aa)
TAF14Transcription initiation factor TFIID subunit 14; Subunit of TFIID, TFIIF, INO80, SWI/SNF, and NuA3 complexes; involved in RNA polymerase II transcription initiation and in chromatin modification; contains a YEATS domain; Belongs to the TAF14 family. (244 aa)
CCL1Cyclin associated with protein kinase Kin28p; Kin28p is the TFIIH-associated carboxy-terminal domain (CTD) kinase involved in transcription initiation at RNA polymerase II promoters; human homolog CCNH allows growth of yeast ccl1 temperature-sensitive mutant at restrictive temperature. (393 aa)
TFB4General transcription and DNA repair factor IIH subunit TFB4; Subunit of TFIIH complex; involved in transcription initiation, similar to 34 kDa subunit of human TFIIH; interacts with Ssl1p. (338 aa)
SUA7Transcription factor TFIIB; a general transcription factor required for transcription initiation and start site selection by RNA polymerase II. (345 aa)
SPN1Transcription factor SPN1; Protein involved in RNA polymerase II transcription; is constitutively recruited to the CYC1 promoter and is required for recruitment of chromatin remodeling factors for the expression of CYC1 gene; interacts genetically or physically with RNAP II, TBP, TFIIS, and chromatin remodelling factors; central domain highly conserved throughout eukaryotes; mutations confer an Spt- phenotype. (410 aa)
SGV1Serine/threonine-protein kinase BUR1; Cyclin (Bur2p)-dependent protein kinase; part of the BUR kinase complex which functions in transcriptional regulation; phosphorylates the carboxy-terminal domain (CTD) of Rpo21p and the C-terminal repeat domain of Spt5p; recruits Spt6p to the CTD at the onset of transcription; regulated by Cak1p; similar to metazoan CDK9 proteins; Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. CDC2/CDKX subfamily. (657 aa)
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: ATCC 18824, Candida robusta, Mycoderma cerevisiae, NRRL Y-12632, S. cerevisiae, Saccharomyces capensis, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, yeast
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