PathScan® Total Chk2 Sandwich ELISA Antibody Pair #7090
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Inquiry Info. # 7090
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Product Specifications
| REACTIVITY | H |
Application Key:
- ELISA+-ELISA and/or ELISA-like Assays
Species Cross-Reactivity Key:
- H-Human
Product Information
Storage
Capture and detection antibodies are stored at 4°C. HRP-linked secondary reagent is stored at -20°C.
实验步骤
Product Description
Cell Signaling Technology's PathScan® Total Chk2 Sandwich ELISA Antibody Pair is offered as an economical alternative to our PathScan® Total Chk2 Sandwich ELISA Kit #7045. Capture and detection antibodies (100X stocks) and HRP-conjugated secondary antibody (1000X stock) are supplied. Sufficient reagents are supplied for 4 x 96 well ELISAs. The Chk2 capture antibody is coated in PBS overnight in a 96 well microplate. After blocking, cell lysates are added followed by a Chk2 detection antibody and an anti-mouse IgG, HRP conjugated antibody. HRP substrate, TMB, is added for color development. The magnitude of the absorbance for this developed color is proportional to the quantity of total Chk2 protein.
Antibodies in kit are custom formulations specific to kit.
Antibodies in kit are custom formulations specific to kit.
Specificity / Sensitivity
For Antibody Pair specificity and sensitivity, please refer to the corresponding PathScan® Sandwich ELISA Kit. Note: This antibody pair detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Species Reactivity:
Human
Background
Chk2 is the mammalian orthologue of the budding yeast Rad53 and fission yeast Cds1 checkpoint kinases (1-3). The amino-terminal domain of Chk2 contains a series of seven serine or threonine residues (Ser19, Thr26, Ser28, Ser33, Ser35, Ser50, and Thr68) each followed by glutamine (SQ or TQ motif). These are known to be preferred sites for phosphorylation by ATM/ATR kinases (4,5). After DNA damage by ionizing radiation (IR), UV irradiation, or hydroxyurea treatment, Thr68 and other sites in this region become phosphorylated by ATM/ATR (5-7). The SQ/TQ cluster domain, therefore, seems to have a regulatory function. Phosphorylation at Thr68 is a prerequisite for the subsequent activation step, which is attributable to autophosphorylation of Chk2 at residues Thr383 and Thr387 in the activation loop of the kinase domain (8).
- Allen, J.B. et al. (1994) Genes Dev. 8, 2401-2415.
- Weinert, T.A. et al. (1994) Genes Dev. 8, 652-665.
- Murakami, H. and Okayama, H. (1995) Nature 374, 817-819.
- Kastan, M.B. and Lim, D.S. (2000) Nat. Rev. Mol. Cell Biol. 1, 179-186.
- Matsuoka, S. et al. (2000) Proc. Natl. Acad. Sci. USA 97, 10389-10394.
- Melchionna, R. et al. (2000) Nat. Cell Biol. 2, 762-765.
- Ahn, J.Y. et al. (2000) Cancer Res. 60, 5934-5936.
- Lee, C.H. and Chung, J.H. (2001) J. Biol. Chem. 276, 30537-30541.
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For Research Use Only. Not for Use in Diagnostic Procedures.
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