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
ISW1
SGN2, chromatin-remodeling ATPase ISW1, L000004447, YBR245C
ATPase subunit of imitation-switch (ISWI) class chromatin remodelers; with Ioc3p forms Isw1a complex involved in repression of transcription initiation; with Ioc2p and Ioc4p forms Isw1b complex involved in regulation of transcription elongation; Isw1b recruited to ORFs by H3K36 methylation and acts with Chd1p to prevent trans-histone exchange over coding regions; Isw1p import into nucleus depends on C-terminal bipartite nuclear targeting signal KRIR X19 KKAK
GO Process (11)
GO Function (4)
GO Component (4)
Gene Ontology Biological Process
- DNA-templated transcription, elongation [IDA, IMP]
- chromatin organization involved in regulation of transcription [IMP]
- chromatin remodeling [IGI, IMP, IPI]
- heterochromatin maintenance involved in chromatin silencing [IGI, IMP]
- negative regulation of histone exchange [IMP]
- nucleosome positioning [IGI, IMP]
- positive regulation of transcription from RNA polymerase II promoter [IMP]
- regulation of chromatin organization [IMP]
- regulation of transcriptional start site selection at RNA polymerase II promoter [IGI]
- termination of RNA polymerase I transcription [IGI]
- termination of RNA polymerase II transcription [IGI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
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
- -29.9 [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