Volume : 50 µg
Clone Number :
Aliases : C85740 antibody; Cell cycle checkpoint kinase antibody; Checkpoint ; S. pombe; homolog of; 1 antibody; Checkpoint kinase 1 antibody; Checkpoint kinase 1 homolog (S. pombe) antibody; CHEK 1 antibody; Chek1 antibody; Chk 1 antibody; Chk1 antibody; CHK1 checkpoint homolog (S. pombe) antibody; CHK1_HUMAN antibody; EC 2.7.11.1 antibody; rad27 antibody; Serine/threonine protein kinase Chk1 antibody; Serine/threonine-protein kinase CHK1 antibody; STT3; subunit of the oligosaccharyltransferase complex; homolog A (S. cerevisiae) antibody
Product Type : polyclonal Ab Antibody
Immunogen Species : Homo sapiens (Human)
UniProt ID : O14757
Immunogen : Recombinant Human Serine/threonine-protein kinase Chk1 protein (258-370AA)
Raised in : Rabbit
Species Reactivity : Human
Tested Applications : ELISA
Background : Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively reg µLate cell cycle progression during unperturbed cell cycles. This reg µLation is achieved by a number of mechanisms that together help to preserve the integrity of the genome. Recognizes the substrate consensus sequence [R-X-X-S/T]. Binds to and phosphorylates CDC25A, CDC25B and CDC25C. Phosphorylation of CDC25A at \'Ser-178\' and \'Thr-507\' and phosphorylation of CDC25C at \'Ser-216\' creates binding sites for 14-3-3 proteins which inhibit CDC25A and CDC25C. Phosphorylation of CDC25A at \'Ser-76\', \'Ser-124\', \'Ser-178\', \'Ser-279\' and \'Ser-293\' promotes proteolysis of CDC25A. Phosphorylation of CDC25A at \'Ser-76\' primes the protein for subsequent phosphorylation at \'Ser-79\', \'Ser-82\' and \'Ser-88\' by NEK11 which is required for polyubiquitination and degradation of CDCD25A. Inhibition of CDC25 leads to increased inhibitory tyrosine phosphorylation of CDK-cyclin complexes and blocks cell cycle progression. Also phosphorylates NEK6. Binds to and phosphorylates RAD51 at \'Thr-309\', which promotes the release of RAD51 from BRCA2 and enhances the association of RAD51 with chromatin, thereby promoting DNA repair by homologous recombination. Phosphorylates m µLtiple sites within the C-terminus of TP53, which promotes activation of TP53 by acetylation and promotes cell cycle arrest and suppression of cell µLar proliferation. Also promotes repair of DNA cross-links thro µgh phosphorylation of FANCE. Binds to and phosphorylates TLK1 at \'Ser-743\', which prevents the TLK1-dependent phosphorylation of the chromatin assembly factor ASF1A. This may enhance chromatin assembly both in the presence or absence of DNA damage. May also play a role in replication fork maintenance thro µgh reg µLation of PCNA. May reg µLate the transcription of genes that reg µLate cell-cycle progression thro µgh the phosphorylation of histones. Phosphorylates histone H3.1 (to form H3T11ph), which leads to epigenetic inhibition of a subset of genes. May also phosphorylate RB1 to promote its interaction with the E2F family of transcription factors and subsequent cell cycle arrest.
Clonality : polyclonal Ab
Isotype : IgG
Purification Method : >95%, Protein G purified
Conj µgate : HRP
Buffer : Preservative : 0.03% Proclin 300
Constituents : 50% Glycerol, 0.01M PBS, PH 7.4
Form : Liquid
Stroage : Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Target Names : CHEK1
Research Areas : Epigenetics and Nuclear Signaling; Cancer