BAF53B Antibody – Rabbit Polyclonal

The protein encoded by this gene is a member of a family of actin-related proteins (ARPs) which share significant amino acid sequence identity to conventional actins. Both actins and ARPs have an actin fold, which is an ATP-binding cleft, as a common feature. The ARPs are involved in diverse cellular processes, including vesicular transport, spindle orientation, nuclear migration and chromatin remodeling. This gene encodes a subunit of the BAF (BRG1/brm-associated factor) complex in mammals, which is functionally related to SWI/SNF complex in S. cerevisiae and Drosophila; the latter is thought to facilitate transcriptional activation of specific genes by antagonizing chromatin-mediated transcriptional repression. This subunit may be involved in the regulation of genes by structural modulation of their chromatin, specifically in the brain. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

BAF53B: a protein of the actin family involved in transcriptional activation and repression of select genes by chromatin remodeling (alteration of DNA-nucleosome topology). Required for maximal ATPase activity of the helicase SMARCA4 and for association of the SMARCA4 containing remodelling complex BAF with chromatin/nuclear matrix.

Protein type: Cytoskeletal

Chromosomal Location of Human Ortholog: 7q22

Cellular Component: nucleolus; nucleus; SWI/SNF complex

Molecular Function: structural constituent of cytoskeleton; transcription coactivator activity

Biological Process: chromatin remodeling; establishment and/or maintenance of chromatin architecture; regulation of transcription from RNA polymerase II promoter; spinal cord development; transcription, DNA-dependent