BAIT
BIR1
L000004754, YJR089W
Subunit of chromosomal passenger complex (CPC); CPC is comprised of Ipl1p-Sli15p-Bir1p-Nbl1p and regulates chromosome segregation; required for chromosome bi-orientation and for spindle assembly checkpoint activation upon reduced sister kinetochore tension; relative distribution to shortened microtubules increases upon DNA replication stress; sumoylated in an Mms21p-dependent manner; human survivin homolog
GO Process (5)
GO Function (0)
GO Component (8)
Gene Ontology Biological Process
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
SUM1
L000003008, YDR310C
Transcriptional repressor that regulates middle-sporulation genes; required for mitotic repression of middle sporulation-specific genes; also acts as general replication initiation factor; involved in telomere maintenance, chromatin silencing; regulated by pachytene checkpoint
GO Process (4)
GO Function (4)
GO Component (1)
Gene Ontology Biological Process
- chromatin silencing at silent mating-type cassette [IGI, IMP]
- negative regulation of transcription by competitive promoter binding [IDA]
- negative regulation of transcription from RNA polymerase II promoter during mitosis [IMP]
- positive regulation of DNA-dependent DNA replication initiation [IGI, IMP, IPI]
Gene Ontology Molecular Function- DNA replication origin binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding transcription factor activity involved in negative regulation of transcription [IDA, IMP]
- sequence-specific DNA binding [IDA]
- DNA replication origin binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding transcription factor activity involved in negative regulation of transcription [IDA, IMP]
- sequence-specific DNA binding [IDA]
Saccharomyces cerevisiae (S288c)
Negative Genetic
Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.
Publication
A Functional Link Between Bir1 and the Saccharomyces cerevisiae Ctf19 Kinetochore Complex Revealed Through Quantitative Fitness Analysis.
The chromosomal passenger complex (CPC) is a key regulator of eukaryotic cell division, consisting of the protein kinase Aurora B/Ipl1 in association with its activator (INCENP/Sli15) and two additional proteins (Survivin/Bir1 and Borealin/Nbl1). Here, we report a genome-wide genetic interaction screen in Saccharomyces cerevisiae using the bir1-17 mutant, identifying through quantitative fitness analysis deletion mutations that act as enhancers and ... [more]
G3 (Bethesda) Sep. 07, 2017; 7(9);3203-3215 [Pubmed: 28754723]
Quantitative Score
- -19.3 [Confidence Score]
Throughput
- High Throughput
Ontology Terms
- phenotype: fitness (APO:0000216)
Additional Notes
- authors define fitness as the maximum double rate x maximum doubling potential, 37C
Curated By
- BioGRID