Anti-BNIP3 (Bcl2/Adenovirus E1B 19kD Protein-Interacting Protein 3, 19kD Interacting Protein 3, NIP3

BNIP3 (Bcl-2/E1B-19kD interacting protein 3) is a pro-apoptotic mitochondrial protein and Bcl-2 family member that contains a Bcl-2 homology 3 (BH3) domain and a carboxyl terminal transmembrane (TM) domain (1-3). While BNIP3 has a predicted molecular weight of about 22kD, it runs anomalously on SDS-PAGE and includes a band of around 60kD that may be a dimeric form that is not reduced (2). BNIP3 associates with anti-apoptotic family members Bcl-2, Bcl-xL, and the adenovirus homologue E1B-1 9kD. BNIP3 is distinct from other Bcl-2 family members t hat contain only the BH3 domain in that the TM domain, and not the BH3 domain, is required for mitochondrial targeting and pro-apoptotic activity (4). In addition to apoptosis, BNIP3 has been implicated in necrosis (5) and autophagy (6,7), although the relationship between BNIP3 and these processes is not fully understood. Increased expression of BNIP3 under hypoxic conditions is mainly regulated by the transcription factor HIF-1a (8-10). Silencing of the BNIP3 promoter by methylation has been observed in several types of cancer cells and may play an important role in their survival (11-14). Applications: Suitable for use in Western Blot. Other applications not tested. Recommended Dilution: Western Blot: 1:1000, incubate membrane with diluted antibody in 5% BSA, 1X TBS, 0.1% Tween-20 at 4°C with gentle shaking, overnight. , Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.