ELISA/assay

HSP70 ELISA Kit (High-Sensitivity)

SKT-108

96 well

HSP70 ELISA Kit (High-Sensitivity)

High-Sensitivity Colorimetric detection of HSP70

96 well

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

HSP70 1 ELISA Kit, HSP70 2 ELISA Kit, HSP70.1 ELISA Kit, HSP72 ELISA Kit, HSPA1 ELISA Kit, HSPA1A ELISA Kit, HSPA1B ELISA Kit

ELISA Kits

Colorimetric Assay

Sandwich ELISA (Enzyme-linked Immunosorbent Assay)

Sandwich

ELISA kit used to quantitate HSP70 concentration in samples.

1. Prepare Standard and samples in Standard and Sample Diluent. 2. Add 100 µL of Standard or sample to appropriate wells. 3. Cover plate with Plate Sealer and incubate at 37°C for 1 hour while shaking at 600rpm. 4. Wash plate four times with 1X Wash Buffer. 5. Add 100 µL of Biotinylated Antibody Working Solution to each well. 6. Cover plate with Plate Sealer and incubate at at 37°C for 1 hour while shaking at 600rpm. 7. Wash plate four times with 1X Wash Buffer. 8. Add 100 µL of Streptavidin-HRP Working Solution to each well. 9. Cover plate with Plate Sealer and incubate at 37°C for 30 minutes while shaking at 600rpm. 10. Wash plate four times with 1X Wash Buffer. 11. Add 100 µL of TMB Substrate to each well. 12. Develop the plate in the dark at room temperature for 30 minutes. 13. Stop reaction by adding 100 µL of Stop Solution to each well. 14. Measure absorbance on a plate reader at 450 nm.

Human Monkey Dog Rat Mouse

Plasma Cell Lysates Tissue

40 samples in duplicate

30 minutes

0.038 ng/ml

0.42 - 27 ng/ml

HSP70 genes encode abundant heat-inducible 70-kDa HSPs (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. Looking for more information on HSP70? Visit our new HSP70 Scientific Resource Guide at http://www.HSP70.com.

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