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  • H5147 - Monoclonal Anti-Heat Shock Protein 70 antibody produced in mouse

H5147 Sigma

Monoclonal Anti-Heat Shock Protein 70 antibody produced in mouse

clone BRM-22, ascites fluid



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Cell Stress, Antibodies to Chaperonins and Heat Shock Proteins,
species reactivity   plant, bovine, guinea pig, nematode, human, Drosophila, rabbit, rat, chicken, hamster
application(s)   electron microscopy: suitable
  immunohistochemistry (frozen sections): suitable
  indirect ELISA: suitable
  microarray: suitable
  western blot: 1:5,000 using bovine brain extract
clone   BRM-22, monoclonal
antibody form   ascites fluid
isotype   IgG1
mol wt   antigen mol wt 70 kDa
contains   15 mM sodium azide
shipped in   dry ice
storage temp.   −20°C
Gene Information   human ... HSPA1A(3303), HSPA1B(3304)
rat ... Hspa1a(24472), Hspa1b(294254)
biological source   mouse
conjugate   unconjugated



HSP70 isolated from bovine brain

General description

A variety of environmental disruptions, such as a sudden increase in temperature, induce cells to rapidly synthesize a group of polypeptides known as heat shock (stress) proteins. Eukaryotic cells contain a multigene family that encodes several closely related 70 kD stress proteins (the HSP70 family) that differ in their intracellular location and regulation. These include four proteins: the constitutive (or cognate) HSP73, the stress-inducible HSP72 and the glucose regulated proteins grp78 (or BiP) and grp75. Members of the HSP70 family play a major role in the folding, unfolding and translocation of polypeptides as well as in the assembly and disassembly of oligomeric protein complexes. In addition, several possible roles have been attributed to the HSP70 family of proteins, in the immune response. It has been shown that alcoholic liver disease is associated with intracytoplasmic accumulation of HSP70. HSP72 was found to increase dramatically in the brains of Alzheimer′s disease patient, and was localized exclusively in neuritic plaques and neurofibrillary tangles. HSP70 concentrates in nuclei during heat shock and returns to the cytoplasm when the shock is removed.


By immunoblotting, the antibody localizes both the constitutive (HSP73) and inducible (HSP72) forms of HSP70. The antibody recognizes HSP70 from brain and other tissue. Immunofluorescent staining demonstrates a rapid and reversible accumulation of the HSP70 protein within the nucleus of heat-shocked (42 °C, 1 hour) human fibroblasts.


Applications in which this antibody has been used successfully, and the associated peer-reviewed papers, are given below.
Immunoprecipitation (1 paper)
Western Blotting (4 papers)

Monoclonal Anti-Heat Shock Protein 70 may be used for the localization of Heat Shock Protein 70 by various immunochemical assays such as ELISA, immunoblot, dot blot, and immunocytochemistry.
The antibody titer of at least 1:5,000 was determined by immunoblotting using bovine brain extract.

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RIDADR  NONH for all modes of transport
WGK Germany  2
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Keywords: Amplification, Buffers, Cell biology, Enzyme-linked immunosorbent assay, Immunofluorescence, Immunohistochemistry, Inflammation, Molecular biology, Phosphorylations, Purification, Western blot

Peer-Reviewed Papers


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