Anti-Bag3 Antibody Picoband®

BAG family molecular chaperone regulator 3 (BAG3) is a member of a conserved family of cyto-protective proteins that bind to and regulate Hsp70 family molecular chaperones. BAG3 mutations are responsible for familial dilated cardiomyopathy. BAG3 polymorphisms are also associated with sporadic forms of the disease together with HSPB7 locus. In muscle cells, BAG3 cooperates with the molecular chaperones Hsc70 and HspB8 to induce the degradation of mechanically damaged cytoskeleton components in lysosomes. This process is called chaperone-assisted selective autophagy (CASA) and is essential for maintaining muscle activity in flies, mice and men.

Expressed in heart, brain, liver and prostate, but not in kidney, lung, adrenal, aorta and pituitary. Within the prostate, expressed in the apex, base, periurethral and lateral lobe. Isoform 4 is the most abundant isoform expressed in the prostate with high levels also detected in liver and heart. .

Apoptosis, Apoptotic Markers, Cancer, Cell Biology, Cell Death, Intracellular, Invasion/Microenvironment, Metabolism, Metabolism Processes, Pathways and Processes

1. Arndt V, Dick N, Tawo R, Dreiseidler M, Wenzel D, Hesse M, Fürst DO, Saftig P, Saint R, Fleischmann BK, Hoch M, Höhfeld J (January 2010) . Chaperone-assisted selective autophagy is essential for muscle maintenance. Curr Biol 20 (2) : 143–8. 2. Homma, S., Iwasaki, M., Shelton, G. D., Engvall, E., Reed, J. C., Takayama, S. BAG3 deficiency results in fulminant myopathy and early lethality. Am. J. Path. 169: 761-773, 2006. 3. Villard, E; Perret, C, Gary, F, Proust, C, Dilanian, G, Hengstenberg, C, Ruppert, V, Arbustini, E, Wichter, T, Germain, M, Dubourg, O, Tavazzi, L, Aumont, MC, DeGroote, P, Fauchier, L, Trochu, JN, Gibelin, P, Aupetit, JF, Stark, K, Erdmann, J, Hetzer, R, Roberts, AM, Barton, PJ, Regitz-Zagrosek, V; Cardiogenics Consortium, Aslam, U, Duboscq-Bidot, L, Meyborg, M, Maisch, B, Madeira, H, Waldenström, A, Galve, E, Cleland, JG, Dorent, R, Roizes, G, Zeller, T, Blankenberg, S, Goodall, AH, Cook, S, Tregouet, DA, Tiret, L, Isnard, R, Komajda, M, Charron, P, Cambien, F (April 1, 2011) . A genome-wide association study identifies two loci associated with heart failure due to dilated cardiomyopathy 32 (9) . pp. 1065–76.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Cytoplasm, cytoskeleton . Endosome . Cytoplasmic vesicle, secretory vesicle, acrosome . Cell junction, synapse, postsynaptic cell membrane, postsynaptic density . Cell projection, dendrite . Cell projection, dendritic spine . Cell junction, synapse . Associated with the cell cortex of neuronal soma and dendrites. Enriched in postsynaptic density of dendritic spines. Associated with the sperm tail (By similarity) . Enriched on the plasma membrane. .