BAIT
MMS21
NSE2, PSO10, SUMO ligase MMS21, L000001125, YEL019C
SUMO ligase and component of the SMC5-SMC6 complex; this complex plays a key role in the removal of X-shaped DNA structures that arise between sister chromatids during DNA replication and repair; required for efficient sister chromatid cohesion; mutants are sensitive to methyl methanesulfonate and show increased spontaneous mutation and mitotic recombination; SUMOylates and inhibits Snf1p function
GO Process (1)
GO Function (2)
GO Component (4)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
MLP2
S000007510, YIL149C
Myosin-like protein associated with the nuclear envelope; nuclear basket protein that connects the nuclear pore complex with the nuclear interior; involved in the Tel1p pathway that controls telomere length; MLP2 has a paralog, MLP1, that arose from the whole genome duplication
GO Process (7)
GO Function (1)
GO Component (7)
Gene Ontology Biological Process
- negative regulation of protein import into nucleus during spindle assembly checkpoint [IGI]
- poly(A)+ mRNA export from nucleus [IMP]
- posttranscriptional tethering of RNA polymerase II gene DNA at nuclear periphery [IMP]
- regulation of transcription, DNA-templated [IEP, IGI]
- spindle pole body organization [IMP]
- telomere tethering at nuclear periphery [IGI]
- transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery [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
A SUMO ligase is part of a nuclear multiprotein complex that affects DNA repair and chromosomal organization.
Through a genetic screen using myosin-like protein strains mlp1Delta mlp2Delta and biochemical purification, we identified a complex of eight proteins, each required for growth and DNA repair in Saccharomyces cerevisiae. Among the subunits are Mms21 that contains a putative Siz/PIAS (protein inhibitor of activated signal transducer and activator of transcription) RING domain characteristic of small ubiquitin-like modifier (SUMO) ligases, two ... [more]
Proc. Natl. Acad. Sci. U.S.A. Mar. 29, 2005; 102(13);4777-82 [Pubmed: 15738391]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
Additional Notes
- mms21 mlp1 mlp2 triple mutant
Curated By
- BioGRID