Description
Product Usage Information
Western Blotting: 1:1000
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody.
Protocol
Available protocols: Western Blotting
Specificity / Sensitivity
HSP90 alpha (D1A7) Rabbit Monoclonal Antibody recognizes endogenous levels of total HSP90α protein. This antibody does not cross-react with HSP90β or other heat shock proteins.
Species Reactivity: Human, Rat, Hamster, Monkey, Bovine, Pig
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu80 of human HSP90α protein.
Background
HSP70 and HSP90 are molecular chaperones expressed constitutively under normal conditions to maintain protein homeostasis and are induced upon environmental stress (1). Both HSP70 and HSP90 are able to interact with unfolded proteins to prevent irreversible aggregation and catalyze the refolding of their substrates in an ATP- and co-chaperone-dependent manner (1). HSP70 has a broad range of substrates including newly synthesized and denatured proteins, while HSP90 tends to have a more limited subset of substrates, most of which are signaling molecules. HSP70 and HSP90 often function collaboratively in a multi-chaperone system, which requires a minimal set of co-chaperones: HSP40, Hop, and p23 (2,3). The co-chaperones either regulate the intrinsic ATPase activity of the chaperones or recruit chaperones to specific substrates or subcellular compartments (1,4). When the ubiquitin ligase CHIP associates with the HSP70/HSP90 complex as a cofactor, the unfolded substrates are subjected to degradation by the proteasome (4). The biological functions of HSP70/HSP90 extend beyond their chaperone activity. They are essential for the maturation and inactivation of nuclear hormones and other signaling molecules (1,3). They also play a role in vesicle formation and protein trafficking (2).
Alternate Names
EL52; epididymis luminal secretory protein 52; epididymis secretory sperm binding protein Li 65p; FLJ31884; Heat shock 86 kDa; heat shock 90kD protein 1, alpha; heat shock 90kD protein 1, alpha-like 4; heat shock 90kD protein, alpha-like 4; heat shock 90kDa protein 1, alpha; heat shock protein 90 alpha family class A member 1; heat shock protein 90kDa alpha (cytosolic), class A member 1; heat shock protein 90kDa alpha family class A member 1; Heat shock protein HSP 90-alpha; HEL-S-65p; HS90A; HSP 86; Hsp103; HSP86; Hsp89; HSP89A; Hsp90; HSP90A; HSP90AA1; HSP90N; HSPC1; HSPCA; HSPCAL1; HSPCAL4; HSPN; LAP-2; LAP2; Lipopolysaccharide-associated protein 2; LPS-associated protein 2; Renal carcinoma antigen NY-REN-38
