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

Details for Product No. ABIN361714
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Antigen
Synonyms fb17b01, hsp90, hsp90a, hsp90a.1, hsp90alpha, wu:fb17b01, zgc:86652, HSP90ALPHA, HSPCA, HSPCAL3
Epitope
AA 604-731
(1)
Reactivity
Human, Mouse (Murine), Rat (Rattus)
(3), (3), (3)
Host
Mouse
(3)
Clonality (Clone)
Monoclonal ()
Application
ELISA, Immunohistochemistry (IHC), Western Blotting (WB)
(3), (3), (3), (2), (2), (2)
Pubmed 12 references available
Quantity 100 μg
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Immunogen Recombinant human HSP90alpha, Specificity mapped to amino acids 604-731
Clone Hyb-K41009
Specificity Detects 90 kDa. This is an alpha-specific product.
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
Background 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 (1). Despite the similarities, HSP90α exists predominantly as a homodimer while HSP90β exists mainly as a monomer.(2) From a functional perspective, HSP90 participates in the folding, assembly, maturation, and stabilization of specific proteins as an integral component of a chaperone complex. (3-6) 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, and trafficking of a variety of proteins. Most of the HSP90-regulated proteins that have been discovered to date are involved in cell signaling. (7-8). 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 (9).
Cellular Localization: Cytoplasm | Melanosome
Gene ID 3320
NCBI Accession NP_001017963
UniProt P07900
Research Area Cancer, Heat Shock Proteins
Application Notes Recommended Dilution: WB (1:1000), IHC (1:5000)
Optimal dilutions for assays should be determined by the user.
Restrictions For Research Use only
Format Liquid
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.
Product cited in: Ishikawa, Sakurai: "Heat-induced expression of the immediate-early gene IER5 and its involvement in the proliferation of heat-shocked cells." in: The FEBS journal, Vol. 282, Issue 2, pp. 332-40, 2015 (PubMed).

Xi, Hu, Buckhaults et al.: "Heat shock factor Hsf1 cooperates with ErbB2 (Her2/Neu) protein to promote mammary tumorigenesis and metastasis." in: The Journal of biological chemistry, Vol. 287, Issue 42, pp. 35646-57, 2012 (PubMed).

Quanz, Herbette, Sayarath et al.: "Heat shock protein 90α (Hsp90α) is phosphorylated in response to DNA damage and accumulates in repair foci." in: The Journal of biological chemistry, Vol. 287, Issue 12, pp. 8803-15, 2012 (PubMed).

Shipp, Watson, Jones: "Associations of HSP90 client proteins in human breast cancer." in: Anticancer research, Vol. 31, Issue 6, pp. 2095-101, 2011 (PubMed).

Background publications 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).

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

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

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).

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).

Validation Images
Catalog No. ABIN361714
399.30 $
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Quantity
Price
100 μg
399.30 $

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