BAIT
RTS1
SCS1, protein phosphatase 2A regulatory subunit RTS1, L000001786, YOR014W
B-type regulatory subunit of protein phosphatase 2A (PP2A); Rts1p and Cdc55p are alternative regulatory subunits for PP2A catalytic subunits, Pph21p and Pph22p; PP2A-Rts1p protects cohesin when recruited by Sgo1p to the pericentromere; highly enriched at centromeres in the absence of Cdc55p; required for maintenance of septin ring organization during cytokinesis, for ring disassembly in G1 and for dephosphorylation of septin, Shs1p; homolog of the mammalian B' subunit of PP2A
GO Process (8)
GO Function (1)
GO Component (7)
Gene Ontology Biological Process
- cellular bud neck septin ring organization [IGI, IMP]
- cellular protein localization [IMP]
- establishment of protein localization to chromosome [IMP]
- meiotic sister chromatid cohesion, centromeric [IMP]
- mitotic spindle orientation checkpoint [IGI]
- protein dephosphorylation [IDA, IMP]
- septin ring disassembly [IMP]
- sister chromatid biorientation [IGI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
DMA1
CHF1, ubiquitin-conjugating protein DMA1, S000029719, YHR115C
Ubiquitin-protein ligase (E3); controls septin dynamics, spindle position checkpoint (SPOC) with ligase Dma2p by regulating recruitment of Elm1p to bud neck; regulates levels of eIF2 subunit Gcd11p, as well as abundance, localization, and ubiquitination of Cdk inhibitory kinase Swe1p; ubiquitinates cyclin Pcl1p; ortholog of human RNF8, similar to human Chfr; contains FHA, RING fingers; DMA1 has a paralog, DMA2, that arose from the whole genome duplication
GO Process (8)
GO Function (1)
GO Component (1)
Gene Ontology Biological Process
- cellular bud neck septin ring organization [IGI]
- establishment of mitotic spindle orientation [IGI]
- mitotic spindle orientation checkpoint [IGI]
- protein autoubiquitination [IDA]
- protein localization to bud neck [IGI]
- protein ubiquitination [IDA]
- protein ubiquitination involved in ubiquitin-dependent protein catabolic process [IGI]
- septin ring assembly [IGI]
Gene Ontology Molecular Function
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
Budding yeast dma proteins control septin dynamics and the spindle position checkpoint by promoting the recruitment of the elm1 kinase to the bud neck.
The first step towards cytokinesis in budding yeast is the assembly of a septin ring at the future site of bud emergence. Integrity of this ring is crucial for cytokinesis, proper spindle positioning, and the spindle position checkpoint (SPOC). This checkpoint delays mitotic exit and cytokinesis as long as the anaphase spindle does not properly align with the division axis. ... [more]
PLoS Genet. Apr. 01, 2012; 8(4);e1002670 [Pubmed: 22570619]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- genetic complex
- rts1/dyn1/dma1/dma2 quadruple mutants are lethal
Related interactions
Curated By
- BioGRID