HSP70 Antibody

HSP70 proteins are a highly conserved family of 70-kDa molecular chaperones encoded by a multigene family in most eukaryotes and prokaryotes. Found in nearly all cellular compartments—including the cytosol, nucleus, mitochondria, endoplasmic reticulum, and chloroplasts—HSP70s are constitutively expressed and strongly upregulated in response to cellular stress. These chaperones play a vital role in protein homeostasis by binding to nascent polypeptides and partially folded or misfolded proteins, preventing aggregation and facilitating proper folding. HSP70s exhibit high-affinity ATP binding and weak ATPase activity, which is stimulated upon interaction with unfolded substrates. ATP hydrolysis triggers conformational changes that regulate substrate binding and release, enabling dynamic cycles of protein folding and refolding. Structurally, the N-terminal domain of HSP70 is responsible for ATP binding, while the C-terminal domain mediates substrate interaction. This modular design allows HSP70s to coordinate with co-chaperones such as HSP40, HIP, HOP, and BAG-1, integrating folding with degradation and transport pathways. In neurodegenerative disease research, HSP70 is of particular interest due to its ability to counteract protein misfolding and aggregation—hallmarks of disorders like Alzheimer’s, Parkinson’s, and Huntington’s disease. By stabilizing toxic intermediates and promoting their clearance, HSP70 enhances neuronal survival and resilience under proteotoxic stress.

Chicken Anti-Human HSP70 Polyclonal

9007-83-4

Detects ~70kDa.

HSPA1A, HSPA1B, HSPA1, HSP70, HSP70-1, HSP70.1, HSP70-2, HSP72, HSP73, HSX70, Heat shock 70 kDa protein 1A, Heat shock 70 kDa protein 1B

12352203

Non-hazardous

Non-hazardous

3303

P0DMV8/P0DMV9

NP_005336.3

Cytoplasm

Full length Human HSP70

HSP70

Unconjugated

Polyclonal

WB | ICC/IF | ELISA

Cancer | Heat Shock | Cell Signaling | Protein Trafficking | Chaperone Proteins | Cancer | Tumor Biomarkers

PEG Purified

1 µg/ml of SMC-178 was sufficient for detection of HSP70 in 20 µg of heat shocked HeLa cell lysate by colorimetric immunoblot analysis using Goat anti-chicken IgY:HRP as the secondary antibody.

1 mg/ml

WB (1:1000), ICC/IF (1:120) ; optimal dilutions for assays should be determined by the user.

0.1

PBS pH7.4, 50% glycerol, 0.09% sodium azide *Storage buffer changes when conjugated

Not for use in humans. Not for use in diagnostics or therapeutics. For in vitro research use only.

1. Balashova N. et al. (2005) J Biol Chem 280: 2186-96. 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. Natl Acad. Sci. USA 89: 7290-7294. 6. Fink A.L. (1999) Physiol. Rev. 79: 425-449.

Blue Ice or 4ºC

-20ºC

Detects ~70kDa.

Human | Mouse | Rat

Cytoplasm

IgY