The SWI/SNF complex is involved in the activation of transcription via the remodeling of nucleosome structure in an ATP-dependent manner. Brm (also designated SNF1 or SNF2α) and Brg-1 (also designated SNF2 or SNF2β) are the ATPase subunits of the mammalian SWI/SNF complex. Brm, Brg-1, Ini1 (integrase interactor 1, also designated SNF5), BAF155 (also designated SRG3) and BAF170 are thought to comprise the functional core of the SWI/SNF complex. In higher eukaryotes, BAF57 is also a critical component of the SWI/ SNF complex. BAF57 contains a high-mobility-group (HMG) domain adjacent to a kinesin-like region and is a DNA-binding subunit of the SWI/SNF complex. The human BAF57 gene maps within the q12-25 region of chromosome 17, a gene-rich area implicated in breast and ovarian cancers.
Background References
1. Martens J A et al. Recent advances in understanding chromatin remodeling by SWI/SNF complexes. Curr Opin Genet Dev 13:136-142 (2003).
2. Euskirchen G et al. SWI/SNF chromatin-remodeling factors: multiscale analyses and diverse functions. J Biol Chem 287:30897-30905 (2012).
Post-translational Modification
Ubiquitinated by TRIP12, leading to its degradation by the proteasome. Ubiquitination is prevented upon interaction between TRIP12 and SMARCC1.
ICC staining BAF57 in HepG2 cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining BAF57 in SH-SY-5Y cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining BAF57 in SK-Br-3 cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Immunohistochemical analysis of paraffin-embedded rat uterus tissue using anti-BAF57 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded human gallbladder tissue using anti-BAF57 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded human lung cancer tissue using anti-BAF57/SMARCE1 antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded human colon tissue using anti-BAF57 antibody. Counter stained with hematoxylin.
Western blot analysis of BAF57 on different lysates with Rabbit anti-BAF57 antibody (ET7109-23) at 1/1,000 dilution.
Lane 1: MCF-7 (Human breast cancer cell) cell lysate Lane 2: Hela (Human cervical adenocarcinoma cell) cell lysate
Lysates/proteins at 10 µg/Lane. Exposure time: 25s seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature Primary antibody: ET7109-23, 1/1,000 in primary antibody dilution buffer (K1803), overnight at 4 ℃ Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1006), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 47 kDa Observed band size: 55 kDa
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