BAIT
NCB2
YDR1, L000003241, YDR397C
Subunit of a heterodimeric NC2 transcription regulator complex; complex binds to TBP and can repress transcription by preventing preinitiation complex assembly or stimulate activated transcription; homologous to human NC2beta; complex also includes Bur6p
GO Process (6)
GO Function (6)
GO Component (2)
Gene Ontology Biological Process
- RNA polymerase II transcriptional preinitiation complex assembly [IMP]
- negative regulation of tRNA transcription from RNA polymerase III promoter [IMP]
- negative regulation of transcription from RNA polymerase II promoter [IDA, IGI, IMP]
- positive regulation of transcription from RNA polymerase II promoter [IDA]
- positive regulation of transcription from RNA polymerase II promoter in response to heat stress [IMP]
- regulation of RNA polymerase II transcriptional preinitiation complex assembly [IMP]
Gene Ontology Molecular Function- TBP-class protein binding RNA polymerase II transcription factor activity [IDA, IPI]
- TBP-class protein binding RNA polymerase II transcription factor activity involved in preinitiation complex assembly [IMP]
- chromatin binding [IDA]
- core promoter binding [IDA]
- transcription coactivator activity [IDA]
- transcription corepressor activity [IDA, IGI, IMP]
- TBP-class protein binding RNA polymerase II transcription factor activity [IDA, IPI]
- TBP-class protein binding RNA polymerase II transcription factor activity involved in preinitiation complex assembly [IMP]
- chromatin binding [IDA]
- core promoter binding [IDA]
- transcription coactivator activity [IDA]
- transcription corepressor activity [IDA, IGI, IMP]
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
IWR1
YDL115C
RNA polymerase II transport factor, conserved from yeast to humans; also has a role in transporting RNA polymerase III into the nucleus; interacts with most of the RNAP II subunits; nucleo-cytoplasmic shuttling protein; deletion causes hypersensitivity to K1 killer toxin; protein increases in abundance and relocalizes from nucleus to cytoplasm upon DNA replication stress
GO Process (3)
GO Function (1)
GO Component (3)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Saccharomyces cerevisiae (S288c)
Phenotypic Suppression
A genetic interaction is inferred when mutation or over expression of one gene results in suppression of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene.
Publication
The yeast RNA polymerase II-associated factor Iwr1p is involved in the basal and regulated transcription of specific genes.
RNA polymerase II (RNA pol II) is a multisubunit enzyme that requires many auxiliary factors for its activity. Over the years, these factors have been identified using both biochemical and genetic approaches. Recently, the systematic characterization of protein complexes by tandem affinity purification and mass spectroscopy has allowed the identification of new components of well established complexes, including the RNA ... [more]
J. Biol. Chem. Oct. 16, 2009; 284(42);28958-67 [Pubmed: 19679657]
Throughput
- Low Throughput
Ontology Terms
- rna accumulation (APO:0000224)
Related interactions
Curated By
- BioGRID