Checkpoint kinase 2 Antibody / Chk2 / CHEK2

CHK2, a protein kinase that is activated in response to DNA damage, is involved in cell cycle arrest. Mapped on 22q12.1, CHK2 has a potential regulatory region rich in SQ and TQ amino acid pairs. It regulates BRCA1 function after DNA damage by phosphorylating serine-988 of BRCA1. Additionally, CHK2 can be modified by phosphorylation and activated in response to ionizing radiation, and can be also modified in response to hydroxyurea treatment. Furthermore, oligomerization of CHEK2 increases the efficiency of transautophosphorylation, resulting in the release of active CHEK2 monomers that proceed to enforce checkpoint control in irradiated cells. Moreover, CHK2 is a tumor suppressor gene conferring predisposition to sarcoma, breast cancer, and brain tumors, and that their observations provided a link between the central role of p53 inactivation in human cancer and the well-defined G2 checkpoint in yeast. There is a wide expression of small amounts of CHK2 mRNA with larger amounts in human testis, spleen, colon, and peripheral blood leukocytes.

Product Specifications

CAS Number

9007-83-4

Specifications

Western blot: 0.5-1 µg/mL, Immunofluorescence: 5 µg/mL, Direct ELISA: 0.1-0.5 µg/mL

UniProt

O96017

Host

Rabbit

Reactivity

Human

Immunogen

E. coli-derived recombinant human protein (amino acids M1-R474) was used as the immunogen for the Checkpoint kinase 2 antibody.

Clonality

Polyclonal

Isotype

IgG

Applications

WB, IF, Direct ELISA

Purity

Antigen affinity purified

Format

Antigen affinity purified

Buffer

Lyophilized from 1X PBS with 2% Trehalose

Reconstitution

After reconstitution, the Checkpoint kinase 2 antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

Limitations

This Checkpoint kinase 2 antibody is available for research use only.

Storage Conditions

After reconstitution, the Checkpoint kinase 2 antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.

Formulation

0.5 mg/mL if reconstituted with 0.2ml sterile DI water

Applications Notes

Optimal dilution of the Checkpoint kinase 2 antibody should be determined by the researcher.

Location

Nuclear

Image Legend

Immunofluorescent staining of FFPE human A549 cells with Checkpoint kinase 2 antibody (red) and Beta Tubulin mAb (green) . HIER: steam section in pH6 citrate buffer for 20 min.