Lane 1: Hela cell lysate
Lane 2: MCF-7 cell lysate
Recombinant Rabbit monoclonal primary
Chk2 Recombinant Rabbit Monoclonal Antibody [SC604] (ET1610-52)
Hela cell lysate, MCF-7 cell lysate, Hela, MCF-7, 293, human spleen tissue, human breast carcinoma tissue.
Store at +4C after thawing. Aliquot store at -20C or -80C. Avoid repeated freeze / thaw cycles.
1*TBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Protein A affinity purified.
CDS 1 antibody; Cds1 antibody; Cds1 homolog antibody; Checkpoint kinase 2 antibody; Checkpoint like protein CHK2 antibody; CHEK 2 antibody; Chek2 antibody; Chk 2 antibody; CHK2 checkpoint homolog (S. pombe) antibody; CHK2 checkpoint homolog antibody; CHK2_HUMAN antibody; hCds1 antibody; HuCds 1 antibody; LFS 2 antibody; LFS2 antibody; PP1425 antibody; RAD 53 antibody; RAD53 antibody; Rad53 homolog antibody; Serine/threonine protein kinase Chk2 antibody; Serine/threonine-protein kinase Chk2 antibody
Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. CHK2 subfamily.
High expression is found in testis, spleen, colon and peripheral blood leukocytes. Low expression is found in other tissues.
Phosphorylated. Phosphorylated at Ser-73 by PLK3 in response to DNA damage, promoting phosphorylation at Thr-68 by ATM and the G2/M transition checkpoint. Phosphorylation at Thr-68 induces homodimerization. Autophosphorylates at Thr-383 and Thr-387 in the T-loop/activation segment upon dimerization to become fully active and phosphorylate its substrates like for instance CDC25C. DNA damage-induced autophosphorylation at Ser-379 induces CUL1-mediated ubiquitination and regulates the pro-apoptotic function. Phosphorylation at Ser-456 also regulates ubiquitination. Phosphorylated by PLK4.; Ubiquitinated. CUL1-mediated ubiquitination regulates the pro-apoptotic function. Ubiquitination may also regulate protein stability. Ubiquitinated by RNF8 via 'Lys-48'-linked ubiquitination.
Cell cycle events are regulated by the sequential activation and deactivation of cyclin dependent kinases (Cdks) and by proteolysis of cyclins. Chk1 and Chk2 are involved in these processes as regulators of Cdks. Chk1 and Chk2 both function as essential components in the G2 DNA damage checkpoint by phosphorylating Cdc25C in response to DNA damage. Phosphorylation inhibits Cdc25C activity, thereby blocking mitosis. Cdc25A, Cdc25B and Cdc25C protein tyrosine phosphatases function as mitotic activators by dephosphorylating Cdc2 p34 on regulatory tyrosine residues. It has also been shown that Chk1 can phosphorylate Wee1 in vitro, providing evidence that the hyperphosphorylated form of Wee1, seen in cells delayed by Chk1 overexpression, is due to phosphorylation by Chk1.