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

ESP1

L000000584, YGR098C
Separase, a caspase-like cysteine protease; promotes sister chromatid separation by mediating dissociation of the cohesin Scc1p from chromatin; inhibits protein phosphatase 2A-Cdc55p to promote mitotic exit; inhibited by Pds1p; relative distribution to the nucleus increases upon DNA replication stress
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

  • mutation of cdc5 or esp1 blocks the chromatid segregation seen when Mad2 is deleted in a Stu1 mutant background

Curated By

  • BioGRID