| Product Name | CHEK2 Antibody |
|---|---|
| Antibody Type | Primary Antibodies |
| Antigen Alias | CHEK2, BA444G7, Cds1 homolog, Checkpoint kinase 2, Checkpoint-like protein CHK2, CHK2 checkpoint homolog, CHK2, HCds1, LFS2, RAD53, Rad53 homolog, HCHK2, HuCds1, PP1425 |
| Product description | Chk2 (checkpoint kinase 2) is the mammalian homolog of the Saccharomyces cerevisiae Rad53 and is required for the DNA damage and replication checkpoints. In response to low-dose ionizing radiation (IR), which occurs in an ataxia telangiectasia mutated (ATM)-dependent manner, Chk2 can phosphorylate the mitosis-inducing phosphatase Cdc25C on an inhibitory site, blocking entry into mitosis, and p53 on a regulatory site, causing G1 arrest (2,3). In human tissues, Chk2 is homogeneously expressed in renewing cell populations such as epidermis or intestine, heterogeneous in conditionally renewing tissues, and absent or at low level in static tissues such as muscle or brain. Mutations in Chk2 inactivates DNA damage checkpoint pathway involving Chk2 in lung cancer suggesting that reduced expression of Chk2 may be responsible for the development of lung cancer. The Chk2-/- knockout cells are resistant to DNA damage-induced apoptosis, defective for p53 stabilization and for induction of p53-dependent transcripts such as p21 in response to gamma irradiation. 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. |
| Immunogen | CHEK2 monoclonal antibody was raised against a synthetic peptide of CHEK2 (Human). |
| Clonality | Monoclonal |
|---|---|
| Isotype | IgG1 |
| Host Species | Mouse |
| Tested Applications | IHCWB |
| CHEK2 antibody can be used in ELISA starting at 1:10000, Western Blot starting at 1:500 - 1:2000, immunohistochemistry starting at 1:200, and flow cytometry starting at 1:200 - 1:400.: |
|
| Species Reactivity | Human |
| Concentration | 1mg/ml |
| Purification | Protein G |
| Gene Symbol | CHEK2 |
|---|---|
| Alternative Names | CHEK2 BA444G7 Cds1 homolog Checkpoint kinase 2 Checkpoint-like protein CHK2 CHK2 checkpoint homolog CHK2 HCds1 LFS2 RAD53 Rad53 homolog HCHK2 HuCds1 PP1425 |
| Application Notes | CHEK2 antibody can be used in ELISA starting at 1:10000, Western Blot starting at 1:500 - 1:2000, immunohistochemistry starting at 1:200, and flow cytometry starting at 1:200 - 1:400.: |
|---|
| Form | Liquid |
|---|---|
| Storage Instructions | CHEK2 antibody should be stored long term (months) at -80 ˚C and short term (days) at 4 ˚C. As with all antibodies avoid freeze/thaw cycles. |
| Storage Buffer | PBS, 0.02% sodium azide. |
