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
Saccharomyces cerevisiae (S288c)


putative tyrosine protein phosphatase MIH1, L000001111, YMR036C
Protein tyrosine phosphatase involved in cell cycle control; regulates the phosphorylation state of Cdc28p; homolog of S. pombe cdc25
GO Process (2)
GO Function (1)
GO Component (2)
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.


Budding yeast Dma1 and Dma2 participate in regulation of Swe1 levels and localization.

Raspelli E, Cassani C, Lucchini G, Fraschini R

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]


  • Low Throughput

Ontology Terms

  • phenotype: inviable (APO:0000112)

Additional Notes

  • dma1/dma2/mih1 triple mutants are lethal
  • genetic complex

Curated By

  • BioGRID