BAIT
RPB4
CTF15, DNA-directed RNA polymerase II subunit RPB4, B32, L000001678, YJL140W
RNA 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
GO Process (6)
GO Function (4)
GO Component (4)
Gene Ontology Biological Process
- mRNA export from nucleus in response to heat stress [IMP]
- nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay [IMP]
- positive regulation of translational initiation [IMP]
- recruitment of 3'-end processing factors to RNA polymerase II holoenzyme complex [IMP]
- transcription from RNA polymerase II promoter [IMP]
- transcription initiation from RNA polymerase II promoter [IDA]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
PAF1
L000002621, YBR279W
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
GO Process (25)
GO Function (6)
GO Component (3)
Gene Ontology Biological Process
- DNA-templated transcription, termination [IMP]
- chromatin organization involved in regulation of transcription [IMP]
- chromatin silencing at rDNA [IMP]
- global genome nucleotide-excision repair [IMP]
- mRNA 3'-end processing [IMP]
- negative regulation of DNA recombination [IMP]
- negative regulation of transcription from RNA polymerase II promoter [IMP]
- positive regulation of histone H3-K36 trimethylation [IMP]
- positive regulation of phosphorylation of RNA polymerase II C-terminal domain serine 2 residues [IMP]
- positive regulation of transcription elongation from RNA polymerase I promoter [IDA]
- positive regulation of transcription elongation from RNA polymerase II promoter [IMP]
- rRNA processing [IMP]
- regulation of chromatin silencing at telomere [IMP]
- regulation of histone H2B conserved C-terminal lysine ubiquitination [IDA]
- regulation of histone H2B ubiquitination [IMP]
- regulation of histone H3-K4 methylation [IMP]
- regulation of phosphorylation of RNA polymerase II C-terminal domain serine 2 residues [IMP]
- regulation of transcription from RNA polymerase II promoter [IMP]
- regulation of transcription involved in G1/S transition of mitotic cell cycle [IMP]
- regulation of transcription-coupled nucleotide-excision repair [IGI]
- snoRNA 3'-end processing [IMP]
- snoRNA transcription from an RNA polymerase II promoter [IDA, IMP]
- transcription elongation from RNA polymerase I promoter [IMP]
- transcription elongation from RNA polymerase II promoter [IGI, IMP]
- transcription from RNA polymerase I promoter [IGI, IMP]
Gene Ontology Molecular Function- RNA polymerase II C-terminal domain phosphoserine binding [IDA]
- RNA polymerase II core binding [IPI]
- RNA polymerase II core promoter sequence-specific DNA binding transcription factor activity [IDA]
- RNA polymerase II transcription factor binding transcription factor activity [IPI]
- TFIIF-class binding transcription factor activity [IMP, IPI]
- chromatin binding [IDA]
- RNA polymerase II C-terminal domain phosphoserine binding [IDA]
- RNA polymerase II core binding [IPI]
- RNA polymerase II core promoter sequence-specific DNA binding transcription factor activity [IDA]
- RNA polymerase II transcription factor binding transcription factor activity [IPI]
- TFIIF-class binding transcription factor activity [IMP, IPI]
- chromatin binding [IDA]
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
Involvement of S. cerevisiae Rpb4 in subset of pathways related to transcription elongation.
Yeast Rpb4, a subunit of RNA pol II is not essential for viability but is involved in multiple cellular phenotypes such as temperature sensitivity, enhanced pseudohyphal morphology, and decreased sporulation. Both in vivo and in vitro studies strongly support involvement of Rpb4 in transcription initiation, while its role in transcription elongation is not entirely consistent. Here we show that Rpb4 ... [more]
Gene Apr. 27, 2014; 0(0); [Pubmed: 24780862]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| PAF1 RPB4 | Dosage Rescue Dosage Rescue A genetic interaction is inferred when over expression or increased dosage of one gene rescues the lethality or growth defect of a strain that is mutated or deleted for another gene. | Low | - | BioGRID | 939317 |
Curated By
- BioGRID