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
KIN28
TFIIH complex serine/threonine-protein kinase subunit KIN28, L000000905, YDL108W
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
GO Process (8)
GO Function (4)
GO Component (4)
Gene Ontology Biological Process
- 7-methylguanosine mRNA capping [IMP]
- phosphorylation of RNA polymerase II C-terminal domain [IDA, IMP]
- phosphorylation of RNA polymerase II C-terminal domain involved in recruitment of 3'-end processing factors to RNA polymerase II holoenzyme complex [IMP, IPI]
- phosphorylation of RNA polymerase II C-terminal domain serine 5 residues involved in recruitment of mRNA capping enzyme to RNA polymerase II holoenzyme complex [IMP]
- positive regulation of transcription from RNA polymerase II promoter [IDA]
- protein phosphorylation [IDA]
- transcription from RNA polymerase I promoter [IMP]
- transcription from RNA polymerase II promoter [IDA, IMP]
Gene Ontology Molecular Function
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
Rpb4/7 facilitates RNA polymerase II CTD dephosphorylation.
The Rpb4 and Rpb7 subunits of eukaryotic RNA polymerase II (RNAPII) participate in a variety of processes from transcription, DNA repair, mRNA export and decay, to translation regulation and stress response. However, their mechanism(s) of action remains unclear. Here, we show that the Rpb4/7 heterodimer in Saccharomyces cerevisiae plays a key role in controlling phosphorylation of the carboxy terminal domain ... [more]
Nucleic Acids Res. Dec. 16, 2014; 42(22);13674-88 [Pubmed: 25416796]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID