CHK2 is a serine/threonine kinase in the CDS subfamily that is activated in response to DNA damage and may regulate cell cycle arrest. It is the human homolog of RAD53 in S. cerevisiae and CDS1 in S. pombe. The protein has a FHA domain, which means it is located in the nucleus. Its kinase activity is up regulated by autophosphorylation in response to DNA damage and to replication blocks. It controls cell cycle checkpoint and may participate in transduction of the DNA damage and replicational stress signals. It also inhibits CDC25 phosphatase to prevent the cell entry into mitosis. Studies show that the deficiency of CHK2 may cause Li-Fraumeni syndrome and other human cancers, such as breast cancer via other gene's function.
Applications:
Suitable for use in Western Blot and Immunohistochemistry. Other applications not tested.
Recommended Dilution:
Western Blot: 2ug/ml
Immunohistochemistry (Formalin fixed paraffin embedded): 10ug/ml
Optimal dilutions to be determined by the researcher.
Storage and Stability:
May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
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