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Catalog No: OPCD02193
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OPCD02193
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Datasheets/ManualsPrintable datasheet for CHEK1 Recombinant Protein (OPCD02193)
Product Info
Predicted Species ReactivityMouse|Mus musculus
Product FormatFreeze-dried Powder. PBS, pH7.4, containing 0.01% SKL, 5% Trehalose.
HostE.coli
ConjugationUnconjugated
ApplicationPositive control|Sodium sodecyl sulfate - polyacrylamide gel electrophoresis|Western blot
Additional InformationEndotoxin Level: < 1.0 EU per 1 ug (determined by the LAL method)
::Residues: Cys194-Gly446
::Subcellular Location: Nucleus. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome
Reconstitution and Storage2°C to 8°C|-80°C
Concentration200 ug/mL (prior to lyoph)
Purity> 95%
SourceE.coli
TagN-terminal His Tag
Gene SymbolChek1
Gene Full Namecheckpoint kinase 1
Alias SymbolsC85740;checkpoint kinase 1 homolog;Checkpoint kinase-1;Chk1;CHK1 checkpoint homolog;rad27;rad27 homolog;serine/threonine-protein kinase Chk1.
NCBI Gene Id12649
Protein NameSerine/threonine-protein kinase Chk1
Description of TargetSerine/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 regulate cell cycle progression during unperturbed cell cycles. This regulation 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. This inhibits their activity through proteasomal degradation, nucleo-cytoplasmic shuttling and inhibition by proteins of the 13-3-3 family. 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 multiple sites within the C-terminus of TP53, which promotes activation of TP53 by acetylation and promotes cell cycle arrest and suppression of cellular proliferation. Also promotes repair of DNA cross-links through phosphorylation of FANCE. Binds to and phosphorylates TLK1, 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 through regulation of PCNA (By similarity). May regulate the transcription of genes that regulate cell-cycle progression through 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.
Uniprot IDO35280
Protein Accession #NP_031717.2
Nucleotide Accession #NM_007691.5
Protein Size (# AA)Cys194~Gly446
Molecular Weight33kDa
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