Rahul Sharma (Editor)


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Species  Human
Entrez  8289
Human  Mouse
Ensembl  ENSG00000117713
Aliases  ARID1A, B120, BAF250, BAF250a, BM029, C1orf4, ELD, MRD14, OSA1, P270, SMARCF1, hELD, hOSA1, CSS2, AT-rich interaction domain 1A
External IDs  MGI: 1935147 HomoloGene: 21216 GeneCards: ARID1A

AT-rich interactive domain-containing protein 1A is a protein that in humans is encoded by the ARID1A gene.



ARID1A is a member of the SWI/SNF family, whose members have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The encoded protein is part of the large ATP-dependent chromatin remodeling complex SNF/SWI, which is required for transcriptional activation of genes normally repressed by chromatin. It possesses at least two conserved domains that could be important for its function. First, it has an ARID domain, which is a DNA-binding domain that can specifically bind an AT-rich DNA sequence known to be recognized by a SNF/SWI complex at the beta-globin locus. Second, the C-terminus of the protein can stimulate glucocorticoid receptor-dependent transcriptional activation. It is thought that the protein encoded by this gene confers specificity to the SNF/SWI complex and may recruit the complex to its targets through either protein-DNA or protein-protein interactions. Two transcript variants encoding different isoforms have been found for this gene.

Clinical significance

This gene has been commonly found mutated in gastric cancers, ovarian clear cell carcinoma, and pancreatic cancer.


Lack of this gene/protein seems to protect rats from some types of liver damage.


ARID1A has been shown to interact with SMARCB1 and SMARCA4.


ARID1A Wikipedia

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