SMARCD3 Antibody – Rabbit Polyclonal

The protein encoded by this gene is a member of the SWI/SNF family of proteins, whose members display helicase and ATPase activities and which 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 and has sequence similarity to the yeast Swp73 protein. Multiple alternatively spliced transcript variants have been found for this gene, but the biological validity of some variants has not been determined. [provided by RefSeq, Jul 2008]

SMARCD3: Plays a role in ATP dependent nucleosome remodeling by SMARCA4 containing complexes. Stimulates nuclear receptor mediated transcription. Belongs to the neural progenitors-specific chromatin remodeling complex (npBAF complex) and the neuron- specific chromatin remodeling complex (nBAF complex). During neural development a switch from a stem/progenitor to a post- mitotic chromatin remodeling mechanism occurs as neurons exit the cell cycle and become committed to their adult state. The transition from proliferating neural stem/progenitor cells to post-mitotic neurons requires a switch in subunit composition of the npBAF and nBAF complexes. As neural progenitors exit mitosis and differentiate into neurons, npBAF complexes which contain ACTL6A/BAF53A and PHF10/BAF45A, are exchanged for homologous alternative ACTL6B/BAF53B and DPF1/BAF45B or DPF3/BAF45C subunits in neuron-specific complexes (nBAF). The npBAF complex is essential for the self-renewal/proliferative capacity of the multipotent neural stem cells. The nBAF complex along with CREST plays a role regulating the activity of genes essential for dendrite growth. Belongs to the SMARCD family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Nuclear receptor co-regulator; Transcription, coactivator/corepressor

Chromosomal Location of Human Ortholog: 7q35-q36

Cellular Component: nucleoplasm; SWI/SNF complex; cytoplasm; nuclear chromatin; nucleus

Molecular Function: ligand-dependent nuclear receptor binding; protein binding; ligand-dependent nuclear receptor transcription coactivator activity; transcription coactivator activity; transcription factor binding; receptor binding; nuclear hormone receptor binding

Biological Process: chromatin remodeling; regulation of transcription from RNA polymerase II promoter; positive regulation of neuroblast proliferation; muscle cell differentiation; transcription, DNA-dependent; nucleosome disassembly; positive regulation of transcription, DNA-dependent; regulation of protein binding; cellular lipid metabolic process