BAIT
DMA2
CHF2, ubiquitin-conjugating protein DMA2, S000029720, YNL116W
Ubiquitin-protein ligase (E3); controls septin dynamics and spindle position checkpoint (SPOC) with ligase Dma1p 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; ortholog of human RNF8, similar to human Chfr; contains FHA and RING finger domains; DMA2 has a paralog, DMA1, that arose from the whole genome duplication
GO Process (7)
GO Function (1)
GO Component (3)
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 involved in ubiquitin-dependent protein catabolic process [IGI]
- septin ring assembly [IGI]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
CDC55
TMR4, protein phosphatase 2A regulatory subunit CDC55, L000000282, S000029602, L000003191, YGL190C
Non-essential regulatory subunit B of protein phosphatase 2A (PP2A); localization to cytoplasm requires Zds1p and Zds2p and promotes mitotic entry; localization to nucleus prevents mitotic exit; required for correct nuclear division and chromosome segregation in meiosis; maintains nucleolar sequestration of Cdc14p during early meiosis; limits formation of PP2A-Rts1p holocomplexes to ensure timely dissolution of sister chromosome cohesion; homolog of mammalian B55
GO Process (7)
GO Function (1)
GO Component (6)
Gene Ontology Biological Process
- cytokinesis after mitosis checkpoint [IGI]
- negative regulation of exit from mitosis [IMP]
- positive regulation of G2/M transition of mitotic cell cycle [IMP]
- positive regulation of protein localization to nucleus [IMP]
- positive regulation of transcription by transcription factor localization [IMP]
- protein dephosphorylation [IDA, IMP]
- regulation of mitotic cell cycle spindle assembly checkpoint [IMP]
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
Budding yeast Dma1 and Dma2 participate in regulation of Swe1 levels and localization.
Timely down-regulation of the evolutionarily conserved protein kinase Swe1 plays an important role in cell cycle control, as Swe1 can block nuclear division through inhibitory phosphorylation of the catalytic subunit of cyclin-dependent kinase. In particular, Swe1 degradation is important for budding yeast cell survival in case of DNA replication stress, while it is inhibited by the morphogenesis checkpoint in response ... [more]
Unknown May. 11, 2011; 0(0); [Pubmed: 21562220]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- dma1/dma2/cdc55 triple mutants are lethal
- genetic complex
Curated By
- BioGRID