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HSP73/HSPA8 Antibody

Rabbit Monoclonal Antibody

  • WB - HSP73/HSPA8 Antibody AJ1381a
    A. Western blot analysis on HeLa cell lysate using anti-Hsp73 RabMAb (Cat. #AJ1381a).
  • IHC - HSP73/HSPA8 Antibody AJ1381a
    B. Immunohistochemical staining of paraffin-embedded human breast carcinoma using anti-Hsp73 RabMAb (Cat. #AJ1381a).
  • IF - HSP73/HSPA8 Antibody AJ1381a
    C. Immunofluorescent staining of HeLa cells using anti-HSP73 RabMAb (Cat. #AJ1381a).
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession P11142
Reactivity Human, Mouse, Rat
Host Rabbit
Clonality Monoclonal
Clone Names EP1531Y
Calculated MW 70898 Da
Gene ID 3312
Other Names Heat shock cognate 71 kDa protein, Heat shock 70 kDa protein 8, Lipopolysaccharide-associated protein 1, LAP-1, LPS-associated protein 1, HSPA8, HSC70, HSP73, HSPA10
Target/Specificity A synthetic peptide corresponding to residues near the C-terminus of human Hsp73 was used as an immunogen.
Dilution WB~~1:500~1000
Format 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
StorageMaintain 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.
PrecautionsHSP73/HSPA8 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name HSPA8
Synonyms HSC70, HSP73, HSPA10
Function Acts as a repressor of transcriptional activation. Inhibits the transcriptional coactivator activity of CITED1 on Smad-mediated transcription. Chaperone. Component of the PRP19- CDC5L complex that forms an integral part of the spliceosome and is required for activating pre-mRNA splicing. May have a scaffolding role in the spliceosome assembly as it contacts all other components of the core complex. Binds bacterial lipopolysaccharide (LPS) et mediates LPS-induced inflammatory response, including TNF secretion by monocytes. Participates in the ER-associated degradation (ERAD) quality control pathway in conjunction with J domain-containing co-chaperones and the E3 ligase CHIP.
Cellular Location Cytoplasm. Melanosome. Nucleus, nucleolus. Cell membrane. Note=Localized in cytoplasmic mRNP granules containing untranslated mRNAs. Translocates rapidly from the cytoplasm to the nuclei, and especially to the nucleoli, upon heat shock
Tissue Location Ubiquitous..
Research Areas
Citations (0)

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Hsp73 is a normal cell constituent which is synthesized in increased abundance under adverse environmental circumstances, such as non-physiological temperatures or treatment with amino acid analogues (1). Data has shown a molecular mechanism for cytokine-mediated posttranscriptional regulation of Bim mRNA by Hsc70, which binds to AU-rich elements (AREs) in the 3'-untranslated region of specific mRNAs and enhances their stability. The RNA binding potential of Hsc70 is regulated by cochaperones including Bag-4 (also SODD), CHIP, Hip, and Hsp40 (2). Hsp73 protein expression was detected in the cytoplasm of melanoma cells in primary tumors and metastases. In primary melanomas, the proportion of Hsp73 protein expressing cells correlated with tumor thickness which was found to be statistically significant (3).


1. Ungewickell E, EMBO J. 4(13A):3385-91, 1985.
2. Matsui H, et al. Mol Cell. 25(1):99-112, 2007.
3. Deichmann M, et al. Int J Oncol 25(2):259-68, 2004.

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Cat# AJ1381a
(40 western blots)
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