BAIT

MAD2

spindle checkpoint protein MAD2, L000000975, YJL030W
Component of the spindle-assembly checkpoint complex; delays onset of anaphase in cells with defects in mitotic spindle assembly; forms a complex with Mad1p; regulates APC/C activity during prometaphase and metaphase of meiosis I; gene dosage imbalance between MAD1 and MAD2 leads to chromosome instability
GO Process (3)
GO Function (0)
GO Component (3)
Saccharomyces cerevisiae (S288c)
PREY

PDS1

securin, L000001368, YDR113C
Securin; inhibits anaphase by binding separin Esp1p; blocks cyclin destruction and mitotic exit, essential for meiotic progression and mitotic cell cycle arrest; localization is cell-cycle dependent and regulated by Cdc28p phosphorylation
GO Process (4)
GO Function (1)
GO Component (3)

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Phenotypic Suppression

A genetic interaction is inferred when mutation or over expression of one gene results in suppression of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene.

Publication

Cdc14 inhibition by the spindle assembly checkpoint prevents unscheduled centrosome separation in budding yeast.

Chiroli E, Rancati G, Catusi I, Lucchini G, Piatti S

The spindle assembly checkpoint (SAC) is an evolutionarily conserved surveillance mechanism that delays anaphase onset and mitotic exit in response to the lack of kinetochore attachment. The target of the SAC is the E3 ubiquitin ligase anaphase-promoting complex (APC) bound to its Cdc20 activator. The Cdc20/APC complex is in turn required for sister chromatid separation and mitotic exit through ubiquitin-mediated ... [more]

Mol. Biol. Cell May. 01, 2009; 20(10);2626-37 [Pubmed: 19339280]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: cell cycle progression (APO:0000253)
  • phenotype: chromosome segregation (APO:0000208)

Additional Notes

  • overexpression of PDS1 blocks the chromatid segregation seen when Mad2 is deleted in a Stu1 mutant background

Curated By

  • BioGRID