Rabbit CHK2 Polyclonal Antibody | anti-CHEK2 antibody

CHK2, phosphorylated (Thr387) (Serine/Threonine-protein Kinase Chk2, Cds1, CHEK2, RAD53)

Cat. Num. AAA628538

• Gene Names: CHEK2; CDS1; CHK2; LFS2; RAD53; HuCds1; PP1425
• Reactivity: Human, Mouse, Rat
• Applications: ELISA, Western Blot, Immunohistochemistry
• Purity: Affinity Purified; Purified by immunoaffinity chromatography.
• Synonyms: CHK2; Polyclonal Antibody; phosphorylated (Thr387) (Serine/Threonine-protein Kinase Chk2; Cds1; CHEK2; RAD53); Anti -CHK2; anti-CHEK2 antibody

• Host: Rabbit
• Reactivity: Human, Mouse, Rat
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: Recognizes human Chk2 when phosphorylated at Thr387. Species Cross-Reactivity: mouse, rat.
• Purity/Purification: Affinity Purified; Purified by immunoaffinity chromatography.
• Form/Format: Supplied as a liquid in PBS (without Mg2+ and Ca2+), pH 7.4, 150mM sodium chloride, 0.02% sodium azide, 50% glycerol.

• Applicable Applications for anti-CHEK2 antibody: ELISA (EL/EIA), Western Blot (WB), Immunohistochemistry (IHC)
• Application Notes: Suitable for use in ELISA, Western Blot, and Immunohistochemistry.; Dilution: ELISA:1:4,000; Western Blot: 1:500-1:1,000; Immunohistochemistry: 1:50-1:100
• Immunogen: Synthetic phosphopeptide corresponding to human CHK2 around the phosphorylation site of threonine 387 (C-G-TP-P-T).
• Preparation and Storage: May be stored at 4 degree C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degree 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.

Immunohistochemistry (IHC)

(Immunohistochemical staining of paraffin-embedded human breast carcinoma tissue using MBS628538. Image on the right is tissue blocked with the immunogen peptide.)

Related Product Information for anti-CHEK2 antibody

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 aa pairs. It regulates BRCA1 function after DNA damage by phosphorylating serine-988 of BRCA11. 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. Morever, 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 Categories/Family for anti-CHEK2 antibody

Antibodies; Abs to Protein Kinases

NCBI and Uniprot Product Information

• NCBI GI #: 11034732
• NCBI GeneID: 11200
• UniProt Accession #: O96017; Q6QA03; Q6QA04; Q6QA05; Q6QA06; Q6QA07; Q6QA08; Q6QA10; A8K3Y9; B7ZBF3; B7ZBF4; B7ZBF5; Q683Z8; Q9HBS5
• Molecular Weight: 60,915 Da
• NCBI Official Full Name: CHK2
• NCBI Official Synonym Full Names: CHK2 checkpoint homolog (S. pombe)
• NCBI Official Symbol: CHEK2
• NCBI Official Synonym Symbols: CDS1; CHK2; LFS2; RAD53; HuCds1; PP1425
• NCBI Protein Information: serine/threonine-protein kinase Chk2; OTTHUMP00000198969; OTTHUMP00000198970; OTTHUMP00000199044; OTTHUMP00000199045; OTTHUMP00000199064; OTTHUMP00000199115; OTTHUMP00000199116; protein kinase CHK2; checkpoint-like protein CHK2
• UniProt Protein Name: Serine/threonine-protein kinase Chk2
• Protein Family: Serine/threonine-protein kinase
• UniProt Gene Name: CHEK2
• UniProt Synonym Gene Names: CHK2; RAD53
• UniProt Entry Name: CHK2_HUMAN

NCBI Description

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. [provided by RefSeq]

Uniprot Description

Chk2: a CAMK protein kinase of the Rad53 family. 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. Phosphorylates and inhibits CDC25C, preventing entry into mitosis, p53, leading to cell cycle arrest in G1, and BRCA1, restoring survival after DNA damage. Twelve splice variant isoforms have been described for human Chk2. LOF mutants cause Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype also caused by p53 mutations. Familial mutations also associated with prostate and breast cancer, and mutations also seen in a variety of sporadic cancers and cell lines.

Protein type: EC 2.7.11.1; Protein kinase, CAMK; Kinase, protein; Tumor suppressor; Protein kinase, Ser/Thr (non-receptor); CAMK group; RAD53 family

Chromosomal Location of Human Ortholog: 22q12.1

Cellular Component: nucleoplasm; Golgi apparatus; chromosome, telomeric region; PML body

Molecular Function: identical protein binding; protein serine/threonine kinase activity; protein binding; protein homodimerization activity; ubiquitin protein ligase binding; metal ion binding; protein kinase binding; ATP binding

Biological Process: protein stabilization; DNA damage induced protein phosphorylation; transcription, DNA-dependent; protein amino acid autophosphorylation; positive regulation of transcription, DNA-dependent; DNA damage response, signal transduction; protein amino acid phosphorylation; regulation of transcription, DNA-dependent; DNA damage response, signal transduction resulting in induction of apoptosis; cellular protein catabolic process; cell division; double-strand break repair; DNA damage checkpoint; response to gamma radiation; regulation of protein catabolic process; G2/M transition of mitotic cell cycle; response to DNA damage stimulus

Disease: Li-fraumeni Syndrome 2; Breast Cancer; Prostate Cancer; Osteogenic Sarcoma