BAIT
ESS1
PIN1, PTF1, peptidylprolyl isomerase ESS1, L000000587, YJR017C
Peptidylprolyl-cis/trans-isomerase (PPIase); specific for phosphorylated serine and threonine residues N-terminal to proline; regulates phosphorylation of the RNAP II large subunit (Rpo21p) C-terminal domain (CTD); associates with phospho-Ser5 form of RNAP II in vivo; regulates phosphorylation of Ser7 within CTD; present along entire coding length of genes; represses initiation of CUTs; required for efficient termination of mRNA transcription and trimethylation of histone H3
GO Process (13)
GO Function (2)
GO Component (1)
Gene Ontology Biological Process
- histone H3-K4 trimethylation [IGI, IMP]
- negative regulation of histone deacetylation [IMP, IPI]
- negative regulation of protein ubiquitination involved in ubiquitin-dependent protein catabolic process [IMP]
- negative regulation of transcription from RNA polymerase II promoter [IGI, IMP]
- positive regulation of RNA polymerase II transcriptional preinitiation complex assembly [IGI]
- positive regulation of chromatin silencing at rDNA [IMP]
- positive regulation of protein dephosphorylation [IDA, IMP]
- positive regulation of transcription from RNA polymerase II promoter [IGI, IPI]
- protein peptidyl-prolyl isomerization [IDA, IMP]
- regulation of phosphorylation of RNA polymerase II C-terminal domain [IDA]
- regulation of transcription involved in G1/S transition of mitotic cell cycle [IMP]
- regulation of transcription involved in G2/M transition of mitotic cell cycle [IMP]
- termination of RNA polymerase II transcription [IGI, IMP]
Gene Ontology Molecular Function
Saccharomyces cerevisiae (S288c)
PREY
SRB2
HRS2, MED20, L000002050, L000003586, YHR041C
Subunit of the RNA polymerase II mediator complex; associates with core polymerase subunits to form the RNA polymerase II holoenzyme; general transcription factor involved in telomere maintenance
GO Process (4)
GO Function (5)
GO Component (1)
Gene Ontology Biological Process
- RNA polymerase II transcriptional preinitiation complex assembly [IDA]
- negative regulation of ribosomal protein gene transcription from RNA polymerase II promoter in response to chemical stimulus [IMP]
- negative regulation of ribosomal protein gene transcription from RNA polymerase II promoter in response to nutrient levels [IMP]
- positive regulation of transcription from RNA polymerase II promoter [IDA]
Gene Ontology Molecular Function- RNA polymerase II transcription coactivator activity involved in preinitiation complex assembly [IDA]
- RNA polymerase II transcription factor recruiting transcription factor activity [IMP]
- TBP-class protein binding RNA polymerase II transcription factor activity involved in preinitiation complex assembly [IDA]
- core RNA polymerase II binding transcription factor activity [IDA, IGI]
- protein domain specific binding [IGI]
- RNA polymerase II transcription coactivator activity involved in preinitiation complex assembly [IDA]
- RNA polymerase II transcription factor recruiting transcription factor activity [IMP]
- TBP-class protein binding RNA polymerase II transcription factor activity involved in preinitiation complex assembly [IDA]
- core RNA polymerase II binding transcription factor activity [IDA, IGI]
- protein domain specific binding [IGI]
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
Synthetic Lethality
A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.
Publication
The Ess1 prolyl isomerase is linked to chromatin remodeling complexes and the general transcription machinery.
The Ess1/Pin1 peptidyl-prolyl isomerase (PPIase) is thought to control mitosis by binding to cell cycle regulatory proteins and altering their activity. Here we isolate temperature-sensitive ess1 mutants and identify six multicopy suppressors that rescue their mitotic-lethal phenotype. None are cell cycle regulators. Instead, five encode proteins involved in transcription that bind DNA, modify chromatin structure or are regulatory subunits of ... [more]
EMBO J. Jul. 17, 2000; 19(14);3727-38 [Pubmed: 10899126]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID