Structural maintenance of chromosomes protein 1A (Q9CU62)

Uniprot ID Q9CU62
Protein Name Structural maintenance of chromosomes protein 1A
Gene Name Smc1a
Species Mus musculus (Mouse)
Signal peptide(a) N Secretome P(b) 0.251
Function Involved in chromosome cohesion during cell cycle and in DNA repair. Involved in DNA repair via its interaction with BRCA1 and its related phosphorylation by ATM, and works as a downstream effector in the ATM/NBS1 branch of S-phase checkpoint (By similarity). Central component of cohesin complex. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. The cohesin complex may also play a role in spindle pole assembly during mitosis. Involved in DNA repair via its interaction with BRCA1 and its related phosphorylation by ATM, or via its phosphorylation by ATR. Works as a downstream effector both in the ATM/NBS1 branch and in the ATR/MSH2 branch of S-phase checkpoint. .
GO - Molecular function
  • ATP binding : IEA:UniProtKB-KW
  • chromatin binding : IDA:MGI
  • mediator complex binding : IDA:MGI
  • protein heterodimerization activity : ISO:MGI
  • protein-containing complex binding : IDA:CAFA
GO - Biological process
  • cell division : IEA:UniProtKB-KW
  • DNA repair : IEA:UniProtKB-KW
  • meiotic cell cycle : IPI:MGI
  • mitotic sister chromatid cohesion : IEA:InterPro
  • negative regulation of DNA endoreduplication : ISO:MGI
  • regulation of mitotic spindle assembly : ISO:MGI
  • response to DNA damage checkpoint signaling : ISS:UniProtKB
  • response to radiation : ISS:UniProtKB
  • sister chromatid cohesion : ISO:MGI
  • stem cell population maintenance : IMP:MGI
Back
(a) The Signal peptide D-score cutoff for "YES"(having signal peptide) is 0.45.
(b) Non-classically secreted proteins should obtain an NN-score(Neural Networks score) exceeding the normal threshold of 0.5, but not at the same time be predicted to contain a signal peptide.