In response to DNA damage and replication blocks, cell cycle progression is halted through the control of critical cell cycle regulators. CHEK2 is a cell cycle checkpoint regulator and putative tumor suppressor. It contains a forkhead-associated protein interaction domain essential for activation in response to DNA damage and is rapidly phosphorylated in response to replication blocks and DNA damage. When activated, CHEK2 is known to inhibit CDC25C phosphatase, preventing entry into mitosis, and has been shown to stabilize the tumor suppressor protein p53, leading to cell cycle arrest in G1. In addition, this protein interacts with and phosphorylates BRCA1, allowing BRCA1 to restore survival after DNA damage. Mutations in its gene have been linked with Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. Also, mutations in its gene are thought to confer a predisposition to sarcomas, breast cancer, and brain tumors. This nuclear protein is a member of the CDS1 subfamily of serine/threonine protein kinases.In response to DNA damage and replication blocks, cell cycle progression is halted through the control of critical cell cycle regulators. The protein encoded by this gene is a cell cycle checkpoint regulator and putative tumor suppressor. It contains a forkhead-associated protein interaction domain essential for activation in response to DNA damage and is rapidly phosphorylated in response to replication blocks and DNA damage. When activated, the encoded protein is known to inhibit CDC25C phosphatase, preventing entry into mitosis, and has been shown to stabilize the tumor suppressor protein p53, leading to cell cycle arrest in G1. In addition, this protein interacts with and phosphorylates BRCA1, allowing BRCA1 to restore survival after DNA damage. Mutations in this gene have been linked with Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. Also, mutations in this gene are thought to confer a predisposition to sarcomas, breast cancer, and brain tumors. This nuclear protein is a member of the CDS1 subfamily of serine/threonine protein kinases. Three transcript variants encoding different isoforms have been found for this gene.1) Kobayashi, A., (2006) Histol. Histopathol. 21 (4), 373-382.
Immunogen
Antibody produced in rabbits immunized with a synthetic peptide corresponding a region of human CHEK2.
Key Feature
Clonality
Polyclonal
Host Species
Rabbit
Tested Applications
ELISAWB
CHEK2 antibody can be used for detection of CHEK2 by ELISA at 1:312500. CHEK2 antibody can be used for detection of CHEK2 by western blot at 0.25 μg/mL, and HRP conjugated secondary antibody should be diluted 1:50,000 - 100,000.:
Antibody used in IHC on Human Placenta at 10 ug/ml.
Application
Antibody used in WB on Human Jurkat 0.2-1 ug/ml.
Positive Control
1) Cat. No. 1205 - Jurkat Cell Lysate
Application Notes
CHEK2 antibody can be used for detection of CHEK2 by ELISA at 1:312500. CHEK2 antibody can be used for detection of CHEK2 by western blot at 0.25 μg/mL, and HRP conjugated secondary antibody should be diluted 1:50,000 - 100,000.:
Additional Information
Form
Liquid
Storage Instructions
For short periods of storage (days) store at 4˚C. For longer periods of storage, store CHEK2 antibody at -20˚C. As with any antibody avoid repeat freeze-thaw cycles.
Storage Buffer
Antibody is lyophilized in PBS buffer with 2% sucrose. Add 50 μL of distilled water. Final antibody concentration is 1 mg/mL.