|Application ||WB, IHC, IF|
|Calculated MW||38779 Da|
|Other Names||BAG family molecular chaperone regulator 1, BAG-1, Bcl-2-associated athanogene 1, BAG1, HAP|
|Target/Specificity||A synthetic peptide corresponding to residues following the repeat 7 of human Bag-1 was used as immunogen. The antibody should recognize all three isoforms of Bag-1 (Bag-1L, Bag-1M and Bag-1S).|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||Bag-1 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||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:27474739, PubMed:9873016, PubMed:24318877). Inhibits the pro-apoptotic function of PPP1R15A, and has anti-apoptotic activity (PubMed:12724406). Markedly increases the anti-cell death function of BCL2 induced by various stimuli (PubMed:9305631).|
|Cellular Location||Isoform 1: Nucleus. Cytoplasm. Note=Isoform 1 localizes predominantly to the nucleus Isoform 4: Cytoplasm. Nucleus. Note=Isoform 4 localizes predominantly to the cytoplasm. The cellular background in which it is expressed can influence whether it resides primarily in the cytoplasm or is also found in the nucleus. In the presence of BCL2, localizes to intracellular membranes (what appears to be the nuclear envelope and perinuclear membranes) as well as punctate cytosolic structures suggestive of mitochondria|
|Tissue Location||Isoform 4 is the most abundantly expressed isoform. It is ubiquitously expressed throughout most tissues, except the liver, colon, breast and uterine myometrium. Isoform 1 is expressed in the ovary and testis. Isoform 4 is expressed in several types of tumor cell lines, and at consistently high levels in leukemia and lymphoma cell lines. Isoform 1 is expressed in the prostate, breast and leukemia cell lines. Isoform 3 is the least abundant isoform in tumor cell lines (at protein level)|
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Provided below are standard protocols that you may find useful for product applications.
Members of the Bcl-2 family of proteins play varied stimulatory or inhibitory roles in the regulation of programmed cell death, or apoptosis. One member of this family, Bcl2-Interacting Protein-1 (BAG-1), functions in conjunction with Bcl-2 to inhibit apoptosis (1,2). BAG-1 is a heat shock 70 kDa (Hsp70)- binding protein (3) that is localized to either the cytosol, nucleus or both.
1. Takayama, S. et al. Cloning of cDNAs encoding the human BAG1 protein and localization of the human BAG1 gene to chromosome 9p12. Genomics 35: 494
2. Matsuzawa, S. et al. p53-inducible human homologue of Drosophila seven in absentia (Siah) inhibits cell growth: suppression by BAG-1. EMBO J. 17: 2736
3. Takayama, S. et al. An evolutionarily conserved family of Hsp70/Hsc70 molecular chaperone regulators. J Biol Chem. 274: 781
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