Heat Shock Protein 90kDa alpha (Cytosolic), Class A Member 2 (HSP90AA2) (AA 604-731) antibody

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Antigen
Synonyms fb17b01, hsp90, hsp90a, hsp90a.1, hsp90alpha, wu:fb17b01, zgc:86652, HSP90ALPHA, HSPCA, HSPCAL3
Epitope
AA 604-731
(12), (12), (4), (1), (1), (1), (1)
Reactivity
Human
(57), (54), (53), (38), (37), (37), (12), (4)
Host
Mouse
(56), (4), (2)
Clonality (Clone)
Monoclonal ()
Conjugate
Un-conjugated
(4), (4), (4), (4), (4), (4), (4), (4), (4), (4), (4)
Application
Western Blotting (WB), ELISA, Immunohistochemistry (IHC)
(40), (20), (12), (7), (6), (4), (2), (2)
Pubmed 12 references available
Quantity 25 µg
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Catalog No. ABIN361713
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Immunogen Recombinant human Hsp90alpha Specificity mapped to AA 604-731
Clone Hyb-K41009
Isotype IgG2a
Specificity Detects 90 kDa proteins corresponding to the molecular mass of Hsp90α.
Sensitivity 1 µg/mL of SMC-108 was sufficient for detection of Hsp90alpha in 20 µg of heat shocked HeLa cell lysate by colorimetric immunoblot analysis using Goat anti-mouse IgG:HRP as the secondary antibody.
Purification Protein G Purified
Alternative Name Hsp90 alpha
Background Synonyms:
Hsp86, Hsp89A, Hsp90A, Hsp90AA1, Hsp90Alpha, HSPC1, HSPCA, HSPCAL3
HSP90 is an abundantly and ubiquitously expressed heat shock protein. It is understood to exist in two principal forms α and β, which share 85 % sequence amino acid homology. The two isoforms of Hsp90, are expressed in the cytosolic compartment. Despite the similarities, HSP90α exists predominantly as a homodimer while HSP90β exists mainly as a monomer. From a functional perspective, hsp90 participates in the folding, assembly, maturation, and stabilization of specific proteins as an integral component of a chaperone complex. Furthermore, Hsp90 is highly conserved between species; having 60 % and 78 % amino acid similarity between mammalian and the corresponding yeast and Drosophila proteins, respectively.
Hsp90 is a highly conserved and essential stress protein that is expressed in all eukaryotic cells. Despite it’s label of being a heat-shock protein, hsp90 is one of the most highly expressed proteins in unstressed cells (1–2 % of cytosolic protein). It carries out a number of housekeeping functions – including controlling the activity, turnover, trafficking of a variety of proteins. Most of the hsp90-regulated proteins that have been discovered to date are involved in cell signaling.
The number of proteins now know to interact with Hsp90 is about 100. Target proteins include the kinases v-Src, Wee1, and c-Raf, transcriptional regulators such as p53 and steroid receptors, and the polymerases of the hepatitis B virus and telomerase.5 When bound to ATP, Hsp90 interacts with co-chaperones Cdc37, p23, and an assortment of immunophilin-like proteins, forming a complex that stabilizes and protects target proteins from proteasomal degradation.
In most cases, hsp90-interacting proteins have been shown to co-precipitate with hsp90 when carrying out immunoadsorption studies, and to exist in cytosolic heterocomplexes with it. In a number of cases, variations in hsp90 expression or hsp90 mutation has been shown to degrade signaling function via the protein or to impair a specific function of the protein (such as steroid binding, kinase activity) in vivo. Ansamycin antibiotics, such as geldanamycin and radicicol, inhibit hsp90 function.
Gene ID 3320
NCBI Accession NP_001017963
UniProt P07900
Research Area Cancer, Heat Shock Proteins
Application Notes Recommended Dilution: 1 µg/mL was sufficient for detection of hsp90alpha by Western Blot in 20 µg of HeLa lysate.
Restrictions For Research Use only
Concentration 1 mg/mL
Buffer PBS pH 7.2, 50 % glycerol, 0.09 % sodium azide
Preservative Sodium azide
Precaution of Use This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage -20 °C
Supplier Images
anti-Heat Shock Protein 90kDa alpha (Cytosolic), Class A Member 2 (HSP90AA2) (AA 604-731) antibody Hsp90alpha (K41009) Mouse Colon Cancer 1 IN 5,000, Amplifier.
anti-Heat Shock Protein 90kDa alpha (Cytosolic), Class A Member 2 (HSP90AA2) (AA 604-731) antibody (2) Total Rat Tissue Hsp90alpha WB 1 in 1000.
Background publications Garg, Hassid: "Nitric oxide decreases cytosolic free calcium in Balb/c 3T3 fibroblasts by a cyclic GMP-independent mechanism." in: The Journal of biological chemistry, Vol. 266, Issue 1, pp. 9-12, 1991 (PubMed).

Whitesell, Mimnaugh, De Costa et al.: "Inhibition of heat shock protein HSP90-pp60v-src heteroprotein complex formation by benzoquinone ansamycins: essential role for stress proteins in oncogenic transformation." in: Proceedings of the National Academy of Sciences of the United States of America, Vol. 91, Issue 18, pp. 8324-8, 1994 (PubMed).

Lowe: "Colipase stabilizes the lid domain of pancreatic triglyceride lipase." in: The Journal of biological chemistry, Vol. 272, Issue 1, pp. 9-12, 1997 (PubMed).

Pratt, Toft: "Steroid receptor interactions with heat shock protein and immunophilin chaperones." in: Endocrine reviews, Vol. 18, Issue 3, pp. 306-60, 1997 (PubMed).

Nemoto, Roi, Matsusaka et al.: "Isoform-specific monoclonal antibodies against HSP90." in: Biochemistry and molecular biology international, Vol. 42, Issue 5, pp. 881-9, 1998 (PubMed).

Pratt: "The hsp90-based chaperone system: involvement in signal transduction from a variety of hormone and growth factor receptors." in: Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.), Vol. 217, Issue 4, pp. 420-34, 1998 (PubMed).

Pearl, Prodromou: "Structure, function, and mechanism of the Hsp90 molecular chaperone." in: Advances in protein chemistry, Vol. 59, pp. 157-86, 2002 (PubMed).

Arlander, Eapen, Vroman et al.: "Hsp90 inhibition depletes Chk1 and sensitizes tumor cells to replication stress." in: The Journal of biological chemistry, Vol. 278, Issue 52, pp. 52572-7, 2003 (PubMed).

General Minami, Kawasaki, Miyata et al.: "Analysis of native forms and isoform compositions of the mouse 90-kDa heat shock protein, HSP90." in: The Journal of biological chemistry, Vol. 266, Issue 16, pp. 10099-103, 1991 (PubMed).

Nemoto, Sato, Iwanari et al.: "Domain structures and immunogenic regions of the 90-kDa heat-shock protein (HSP90). Probing with a library of anti-HSP90 monoclonal antibodies and limited proteolysis." in: The Journal of biological chemistry, Vol. 272, Issue 42, pp. 26179-87, 1997 (PubMed).

Neckers: "Hsp90 inhibitors as novel cancer chemotherapeutic agents." in: Trends in molecular medicine, Vol. 8, Issue 4 Suppl, pp. S55-61, 2002 (PubMed).

Pratt, Toft: "Regulation of signaling protein function and trafficking by the hsp90/hsp70-based chaperone machinery." in: Experimental biology and medicine (Maywood, N.J.), Vol. 228, Issue 2, pp. 111-33, 2003 (PubMed).

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