SMC1A Back

structural maintenance of chromosomes 1A

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NCBI Description of SMC1A

Proper cohesion of sister chromatids is a prerequisite for the correct segregation of chromosomes during cell division. The cohesin multiprotein complex is required for sister chromatid cohesion. This complex is composed partly of two structural maintenance of chromosomes (SMC) proteins, SMC3 and either SMC1L2 or the protein encoded by this gene. Most of the cohesin complexes dissociate from the chromosomes before mitosis, although those complexes at the kinetochore remain. Therefore, the encoded protein is thought to be an important part of functional kinetochores. In addition, this protein interacts with BRCA1 and is phosphorylated by ATM, indicating a potential role for this protein in DNA repair. This gene, which belongs to the SMC gene family, is located in an area of the X-chromosome that escapes X inactivation.

Community Annotation of SMC1A Add / Edit SMC1A: Annotations

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Figure notes

• "Mouse over" a mutation to see details.
• Missense green saturation indicates evolutionary conservation of the mutated positions.
• Red hashes in protein strip are splice sites.
• Blue-white-red bars are log2 copy ratio distributions (–1 to +1) from Zack et al. (2013).


SMC1A is highly significantly mutated in
SMC1A is significantly mutated in
Acute myeloid leukemia
7 patients (3%)
SMC1A is near significance in
Glioblastoma multiforme
5 patients (1%)

Click on a tumor type to see its full list of significant genes.

Data details

Mutation list for SMC1A