SMC1A Gene Summary [Human]

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 SMC1B 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. Mutations in this gene result in Cornelia de Lange syndrome. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2013]

Details

Type
Protein Coding
Official Symbol
SMC1A
Official Name
structural maintenance of chromosomes 1A [Source:HGNC Symbol;Acc:HGNC:11111]
Ensembl ID
ENSG00000072501
Bio databases IDs NCBI: 8243 Ensembl: ENSG00000072501
Aliases structural maintenance of chromosomes 1A
Synonyms 5830426I24Rik, CDLS2, DEE85, DXS423E, EIEE85, mKIAA0178, SB1.8, SMC1, SMC1alpha, SMC1 beta, SMC1L1, Smc1 α, SMC1 β, SMCB, STRUCTURAL MAINTENANCE of CHROMOSOMES 1, structural maintenance of chromosomes 1A
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human SMC1A often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • chromosome segregation protein SMC, common bacterial type
  • RecF/RecN/SMC N terminal domain
  • chromosome segregation protein SMC, primarily archaeal type
  • SMC proteins Flexible Hinge Domain
  • exonuclease SbcC
  • binding protein
  • chromatin binding
  • enzyme
  • protein binding
  • protein heterodimerization
  • phosphorylation site
  • AAA domain

Pathways

Biological processes and signaling networks where the SMC1A gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • neoplasia
  • epithelial cancer
  • Cornelia de Lange syndrome type 2
  • lung squamous cell carcinoma
  • squamous cell lung cancer
  • X-linked complex neurodevelopmental disorder
  • Wiedemann-Steiner syndrome
  • hereditary disorder
  • serous ovarian adenocarcinoma
  • serous ovarian cancer
regulated by
role in cell
  • expression in
  • proliferation
  • number
  • migration
  • cell death
  • survival
  • quantity
  • invasion by
  • assembly
  • metaphase

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • nuclear fraction
  • microtubule aster fraction
  • Cytoplasm
  • cytosol
  • connecting cilia
  • chromosome
  • nuclear pores
  • nucleoplasm
  • nucleoli
  • spindle pole
  • nuclear matrix
  • kinetochores
  • centromeres
  • synaptonemal complexes
  • chromatin
  • chromosomal axial elements
  • detergent-soluble fraction

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human SMC1A gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • sister chromatid cohesion
  • DNA repair
  • establishment of meiotic sister chromatid cohesion
  • mitotic sister chromatid cohesion
  • establishment of mitotic sister chromatid cohesion
  • response to radiation
  • cell division
  • meiotic cell cycle
  • mitotic sister chromatid segregation
  • somatic stem cell maintenance
  • response to DNA damage checkpoint signal
  • spindle assembly involved in mitosis

Cellular Component

Where in the cell the gene product is active
  • nucleus
  • nuclear matrix
  • cytosol
  • meiotic cohesin complex
  • cohesin complex
  • mitotic cohesin complex
  • chromosome
  • kinetochore
  • chromosome, centromeric region
  • nucleoplasm
  • condensed nuclear chromosome

Molecular Function

What the gene product does at the molecular level
  • ATPase activity
  • ATP binding
  • DNA binding
  • RNA binding
  • protein binding
  • protein heterodimerization activity
  • mediator complex binding
  • chromatin binding

Gene-Specific Assays for Results You Can Trust

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