Aliases for BAG3 Gene
External Ids for BAG3 Gene
Previous GeneCards Identifiers for BAG3 Gene
BAG proteins compete with Hip for binding to the Hsc70/Hsp70 ATPase domain and promote substrate release. All the BAG proteins have an approximately 45-amino acid BAG domain near the C terminus but differ markedly in their N-terminal regions. The protein encoded by this gene contains a WW domain in the N-terminal region and a BAG domain in the C-terminal region. The BAG domains of BAG1, BAG2, and BAG3 interact specifically with the Hsc70 ATPase domain in vitro and in mammalian cells. All 3 proteins bind with high affinity to the ATPase domain of Hsc70 and inhibit its chaperone activity in a Hip-repressible manner. [provided by RefSeq, Jul 2008]
GeneCards Summary for BAG3 Gene
BAG3 (BAG Cochaperone 3) is a Protein Coding gene. Diseases associated with BAG3 include Myopathy, Myofibrillar, 6 and Cardiomyopathy, Dilated, 1Hh. Among its related pathways are Cellular response to heat stress and Cellular Senescence (REACTOME). Gene Ontology (GO) annotations related to this gene include chaperone binding. An important paralog of this gene is BAG4.
UniProtKB/Swiss-Prot Summary for BAG3 Gene
Co-chaperone for HSP70 and HSC70 chaperone proteins. Acts as a nucleotide-exchange factor (NEF) promoting the release of ADP from the HSP70 and HSC70 proteins thereby triggering client/substrate protein release. Nucleotide release is mediated via its binding to the nucleotide-binding domain (NBD) of HSPA8/HSC70 where as the substrate release is mediated via its binding to the substrate-binding domain (SBD) of HSPA8/HSC70 (PubMed:9873016, PubMed:27474739). Has anti-apoptotic activity (PubMed:10597216). Plays a role in the HSF1 nucleocytoplasmic transport (PubMed:26159920).