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SMARCA1

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For Research Use Only. Not For Clinical Use.


This gene encodes a member of the SWI/SNF family of proteins. The encoded protein is an ATPase which is expressed in diverse tissues and contributes to the chromatin remodeling complex that is involved in transcription. The protein may also play a role in DNA damage, growth inhibition and apoptosis of cancer cells. Alternative splicing results in multiple transcript variants.
Protein class

Transcription factors

Predicted location

Intracellular

Single cell type specificity

Cell type enhanced (Leydig cells)

Immune cell specificity

Immune cell enhanced (naive CD4 T-cell)

Cell line specificity

Low cell line specificity

Interaction

[Isoform 1]: May form homodimers (PubMed:15310751). Component of the BPFT-SMARCA1 complex at least composed of SMARCA1, BPFT, RBBP4 and RBBP7; the complex is catalytically inactive and does not remodel chromatin (PubMed:15310751). Within the complex interacts with BPTF, RBBP4 and RBBP7 (PubMed:15310751). Component of the BAZ1A-1-SMARCA1 complex at least composed of SMARCA1 and BAZ1A; the complex is catalytically inactive and does not remodel chromatin (PubMed:28801535). Component of the BAZ1B-1-SMARCA1 complex at least composed of SMARCA1 and BAZ1B; the complex is catalytically inactive and does not remodel chromatin (PubMed:28801535). [Isoform 2]: May form homodimers (PubMed:15310751). Component of the ACF-1 ISWI chromatin remodeling complex at least composed of SMARCA1 and BAZ1A, which regulates the spacing of histone octamers on the DNA template to facilitate access to DNA (PubMed:28801535). Within the complex interacts with BAZ1A; the interaction is direct (PubMed:28801535). Component of the WICH-1 ISWI chromatin remodeling complex at least composed of SMARCA1 and BAZ1B/WSTF (PubMed:28801535). Within the complex interacts with BAZ1B/WSTF (PubMed:28801535). Component of the NoRC-1 ISWI chromatin remodeling complex at least composed of SMARCA1 and BAZ2A/TIP5 (PubMed:28801535). Within the complex interacts with BAZ2A/TIP5 (PubMed:28801535). Component of the BRF-1 ISWI chromatin remodeling complex at least composed of SMARCA1 and BAZ2B (PubMed:28801535). Within the complex interacts with BAZ2B (PubMed:28801535). Component of the NURF-1 ISWI chromatin remodeling complex (also called the nucleosome-remodeling factor (NURF) complex) at least composed of SMARCA1, BPTF, RBBP4 and RBBP7 (PubMed:14609955, PubMed:15640247, PubMed:28801535). Within the complex interacts with BPTF (PubMed:15310751, PubMed:14609955, PubMed:28801535). Within the complex interacts with RBBP4 and RBBP7 (PubMed:15310751, PubMed:14609955). Component of the CERF-1 ISWI chromatin remodeling complex (also called the CECR2-containing-remodeling factor (CERF) complex) at least composed of CECR2 and SMARCA1 (PubMed:15640247, PubMed:28801535). Within the complex interacts with CECR2 (PubMed:28801535). Component of the RSF-1 ISWI chromatin remodeling complex at least composed of SMARCA1 and RSF1 (PubMed:15640247, PubMed:28801535). Within the complex interacts with RSF1 (PubMed:28801535). Interacts with PRLR (PubMed:16740656). Interacts with ERCC6 (PubMed:26030138).

Molecular function

Activator, Chromatin regulator, Helicase, Hydrolase

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