8rog

Structural highlights

Disease

SMC1A_HUMAN Cornelia de Lange syndrome;Wiedemann-Steiner syndrome. The disease is caused by mutations affecting the gene represented in this entry.

Function

SMC1A_HUMAN Involved in chromosome cohesion during cell cycle and in DNA repair. 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.^[1]

References

1. ↑ Yazdi PT, Wang Y, Zhao S, Patel N, Lee EY, Qin J. SMC1 is a downstream effector in the ATM/NBS1 branch of the human S-phase checkpoint. Genes Dev. 2002 Mar 1;16(5):571-82. PMID:11877377 doi:http://dx.doi.org/10.1101/gad.970702