In the presence of an appropriate stimulus, accelerates programmed cell death by binding to, and antagonizing the anti- apoptotic action of BCL2 or its adenovirus homolog E1B 19k protein. Low micromolar levels of zinc ions inhibit the promotion of apoptosis. Interacts with BCL2A1. Homodimer. Formation of the homodimer is zinc-dependent. Forms heterodimers with BCL2, E1B 19k protein, and BCL2L1 isoform Bcl-X(L). Interacts with myxoma virus protein M11L. Expressed in a wide variety of tissues, with highest levels in the heart and skeletal muscle. Belongs to the Bcl-2 family. Note: This description may include information from UniProtKB.
Protein type: Endoplasmic reticulum; Mitochondrial; Membrane protein, integral; Apoptosis
Cellular Component: pore complex; mitochondrial outer membrane; mitochondrion; endoplasmic reticulum; cytosol; integral to mitochondrial outer membrane
Molecular Function: BH domain binding; identical protein binding; protein binding; protein homodimerization activity; protein heterodimerization activity; metal ion binding; chaperone binding; heat shock protein binding
Biological Process: response to fungus; regulation of protein heterodimerization activity; apoptosis; positive regulation of proteolysis; regulation of cell cycle; positive regulation of apoptosis; myeloid cell homeostasis; negative regulation of peptidyl-serine phosphorylation; B cell apoptosis; response to organic cyclic substance; negative regulation of cell proliferation; B cell homeostasis; regulation of mitochondrial membrane potential; response to gamma radiation; establishment and/or maintenance of transmembrane electrochemical gradient; B cell negative selection; aging; response to drug; organ regeneration; release of cytochrome c from mitochondria; response to mycotoxin; mitochondrial fusion; regulation of protein homodimerization activity; vagina development; limb morphogenesis; endocrine pancreas development; response to UV-C; cell proliferation; endoplasmic reticulum calcium ion homeostasis; response to ethanol; unfolded protein response, activation of signaling protein activity; response to hydrogen peroxide; DNA damage response, signal transduction resulting in induction of apoptosis; reduction of endoplasmic reticulum calcium ion concentration; blood vessel remodeling; brain development; caspase activation via cytochrome c; regulation of mitochondrial membrane permeability; post-embryonic camera-type eye morphogenesis
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.