Western blot analysis of extracts from HeLa and MDA-MB-231 cells using Brd2 (D89B4) Rabbit mAb (Biotinylated).
This Cell Signaling Technology antibody is conjugated to biotin under optimal conditions. The biotinylated antibody is expected to exhibit the same species cross-reactivity as the unconjugated Brd2 (D89B4) Rabbit mAb #5848.
Supplied in 136 mM NaCl, 2.6 mM KCI, 12 mM sodium phosphate (pH 7.4) dibasic, 2 mg/ml BSA, and 50% glycerol. Store at –20°C. Do not aliquot the antibody.
For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
NOTE: Please refer to primary antibody product webpage for recommended antibody dilution.
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
Load 20 µl onto SDS-PAGE gel (10 cm x 10 cm).
NOTE: Volumes are for 10 cm x 10 cm (100 cm2) of membrane; for different sized membranes, adjust volumes accordingly.
Do not add Anti-biotin, HRP-linked Antibody for detection of biotinylated protein markers. There is no need. The Streptavidin-HRP will also visualize the biotinylated markers.
* Avoid repeated exposure to skin.
posted June 2005
revised June 2020
Protocol Id: 266
Brd2 (D89B4) Rabbit mAb (Biotinylated) recognizes endogenous levels of total Brd2 protein.
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala310 of human Brd2 protein.
Brd2 is a highly conserved member of the BET subfamily of bromodomain proteins that contain two tandem N-terminal bromodomains and a single C-terminal extra-terminal (ET) domain (1). In addition to its involvement in guiding the expression of cell cycle genes through its binding to multiple E2Fs (2), Brd2 has been shown to be associated with several regulators of transcription, including TFIID and Swi/Snf complexes (3,4). First identified as a nuclear serine/threonine kinase (5), Brd2, like other bromodomain proteins, is thought to function in mammalian development by regulating chromatin structure and transcription (6). Brd2 has been shown to bind to histone H4 via acetylated Lys12, a substrate of several histone acetyltransferase transcriptional coactivators (7). In mouse, Brd2 has the highest levels of expression during embryogenesis and in the adult testis, ovaries, and brain (8,9,10). Brd2-deficient mouse embryos exhibit delayed development and eventual death due to neural tube closure defects (11). Mutations in the promoter of the Brd2 gene have been associated with increased susceptibility to juvenile myoclonic epilepsy (JME) (12).
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