AR03022PU-S Heat shock protein 70 / HSP70 (active)

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50 µg / €350.00
Please visit the country specific website of OriGene Technologies or contact your local Distributor to buy this product.

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Heat shock protein 70 / HSP70

AR03022PU-S

Product Description for Heat shock protein 70 / HSP70

Heat shock protein 70 / HSP70.
Presentation: Aff - Purified

Properties for Heat shock protein 70 / HSP70

Product Category Proteins & Growth Factors
Quantity 50 µg
Synonyms HSP70-1/HSP70-2, HSP70.1, HSPA1, HSPA1A, HSPA1B, Heat shock 70 kDa protein 1A/1B
Presentation Aff - Purified
Source E. coli
Species (Protein) Human
Shipping to Worldwide
PDF datasheet View Datasheet
Manufacturer OriGene Technologies GmbH
Material safety datasheet MSDS for Proteins (de)

Datasheet Extract

Immunogen
Swiss Prot Num:
P08107
Purity > 95 % pure as determined by SDS-PAGE analysis
Application ATPase Assay, WB control, Binding Assays, ELISA reference standard, Lipid Interaction Assays, Chaperone assays.
Background (hsp70s). In most eukaryotes hsp70 genes exist as part of a multigene family. They are found in most cellular compartments of eukaryotes including nuclei, mitochondria, chloroplasts, the endoplasmic reticulum and the cytosol, as well as in bacteria. The genes show a high degree of conservation, having at least 5O% identity (2). The N-terminal two thirds of hsp70s are more conserved than the C-terminal third. Hsp70 binds ATP with high affinity and possesses a weak ATPase activity which can be stimulated by binding to unfolded proteins and synthetic peptides (3). When hsc70 (constitutively expressed) present in mammalian cells was truncated, ATP binding activity was found to reside in an N-terminal fragment of 44kDa which lacked peptide binding capacity. Polypeptide binding ability therefore resided within the C-terminal half (4). The structure of this ATP binding domain displays multiple features of nucleotide binding proteins (5). All hsp70s, regardless of location, bind proteins, particularly unfolded ones. The molecular chaperones of the hsp70 family recognize and bind to nascent polypeptide chains as well as partially folded intermediates of proteins preventing their aggregation and misfolding. The binding of ATP triggers a critical conformational change leading to the release of the bound substrate protein (6). The universal ability of hsp70s to undergo cycles of binding to and release from hydrophobic stretches of partially unfolded proteins determines their role in a great variety of vital intracellular functions such as protein synthesis, protein folding and oligomerization and protein transport.
Concentration 0.35 mg/ml
General Readings
  1. Zho, J. (1998). Cell 94: 471-480
  2. Boorstein, W. R., Ziegelhoffer, T. & Craig, E. A. (1993), J. Mol. Evol.38 (1) 1-17.
  3. Rothman, J. (1989), Cell 59, 591 -601.
  4. DeLuca-Flaherty et al. (1990), Cell 62, 875- 887.
  5. Bork, P., Sander, C. & Valencia, A. (1992), Proc. Nut1 Acad. Sci. USA 89, 7290-7294.
  6. Fink, A.L. (1999) Physiol. Rev. 79: 425-449.
  7. Smith, D.F., et al., (1993) Mol. Cell. Biol. 13(2):869-876.
  8. Prapapanich, V., et al., (1996) Mol. Cell. Biol. 16(11):6200-6207.
  9. Fernandez-Funez et al., (2000) Nature 408(6808):101-106
Storage Store the antigen (in aliquots) at -20°C.
Avoid repeated freezing and thawing.
Shelf life: One year from despatch.
Source E.coli
Description
Description:
Recombinant Human Hsp70 Protein, cloned from a human cDNA library, with ATPase activity, native sequence, no tags
Format
Buffer System:
20 mM Tris, 50 mM KCl, 5 mM MgCl2, 1 mM DTT, pH 7.5
Purity:
>95% pure as determined by SDS-PAGE analysis
State:
Liquid protein
Aff - Purified
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