|+1 404 474 4654|
|+1 888 205 9894 (TF)|
Checkpoint Kinase 1 (CHEK1) (pSer280) antibody
|Synonyms||CHK1, Chk1, rad27, C85740, CHEK1, LOC398191, chk1, chek1|
Alternatives Western Blotting (WB), Immunohistochemistry (IHC), ELISA
|3 references available|
|Quantity||400 µL (0.25 mg/ml)|
|Price||280.50 $ Plus shipping costs $45.00|
|Availability||Will be delivered in 2 to 3 Business Days|
|Immunogen||This Phospho-CHK1-S280 antibody is generated from rabbits immunized with a KLH conjugated synthetic phosphopeptide corresponding to amino acid residues surrounding S280region of human CHK1.|
|Description||Other names: Serine/threonine-protein kinase Chk1, CHEK1, CHK1,|
|Characteristics||Peptide Affinity Purified Rabbit Polyclonal Antibody (Pab)|
|Specificity||This Phospho-CHK1-S280 antibody is generated from rabbits immunized with a KLH conjugated synthetic phosphopeptide corresponding to amino acid residues surrounding S280region of human CHK1.|
|Molecular Weight||54420 DA|
Background: Checkpoint pathways control the order and timing of cell cycle transitions and ensure that critical events, such as DNA replication and chromosome segregation, are completed with high fidelity. The S. pombe Chk1 gene encodes a protein kinase that is required for the DNA damage checkpoint. Antibodies against CHK1 recognized a 54-kD protein on immunoblots of mammalian cell extracts. However,CHK1 is modified in response to DNA damage. In vitro, CHK1 directly phosphorylated a regulator of CDC2 tyrosine phosphorylation, CDC25C. In response to DNA damage, CHK1 phosphorylates and inhibits CDC25C, thus preventing activation of the CDC2-cyclin B complex and mitotic entry. CHK1 directly phosphorylates CDC25A during an unperturbed cell cycle, and that phosphorylation of CDC25A by CHK1 is required for cells to delay cell cycle progression in response to double-strand DNA breaks.
|Application Notes||The suggested dilution is: ELISA~~1:1,000 Western blotting~~1:100~500 Immunohistochemistry~~1:50~100|
|Buffer||Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is first purified by protein G affinity chromatography. Then, the antibody fraction is peptide affinity purified in a 2-step procedure with control and phosphorylate|
|Storage||Maintain refrigerated at 2-8 deg C for up to 6 months. For long term storage store at -20 deg C in small aliquots to prevent freeze-thaw cycles|
|Research Area||Phospho-specific antibodies, Cell Signaling, Protein Modifications, Cell Cycle, Signaling, Chromatin, Cell Structure|
|Restrictions||For Research Use only|
Ng, Lee, Ho et al.: "Differential mode of regulation of the checkpoint kinases CHK1 and CHK2 by their regulatory domains." in: The Journal of biological chemistry, Vol. 279, Issue 10, pp. 8808-19, 2004 (PubMed).
Xu, Lee, Stern: "Microcephalin is a DNA damage response protein involved in regulation of CHK1 and BRCA1." in: The Journal of biological chemistry, Vol. 279, Issue 33, pp. 34091-4, 2004 (PubMed).
Krämer, Mailand, Lukas et al.: "Centrosome-associated Chk1 prevents premature activation of cyclin-B-Cdk1 kinase." in: Nature cell biology, Vol. 6, Issue 9, pp. 884-91, 2004 (PubMed).