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
PGD1
HRS1, MED3, L000000811, L000001408, YGL025C
Subunit of the RNA polymerase II mediator complex; associates with core polymerase subunits to form the RNA polymerase II holoenzyme; essential for basal and activated transcription; direct target of Cyc8p-Tup1p transcriptional corepressor
GO Process (3)
GO Function (3)
GO Component (1)
Gene Ontology Biological Process
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
Specific defects in different transcription complexes compensate for the requirement of the negative cofactor 2 repressor in Saccharomyces cerevisiae.
Negative cofactor 2 (NC2) has been described as an essential and evolutionarily conserved transcriptional repressor, although in vitro and in vivo experiments suggest that it can function as both a positive and a negative effector of transcription. NC2 operates by interacting with the core promoter and components of the basal transcription machinery, like the TATA-binding protein (TBP). In this work, ... [more]
Genetics May. 01, 2007; 176(1);125-38 [Pubmed: 17339209]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Curated By
- BioGRID