Chk1 antibody detects CHK1 protein by western blot analysis. A. 30 μg 293T whole cell lysate/extract B. 30 μg whole cell lysate/extract of human Chk1-transfected 293T cells 10 % SDS-PAGE Chk1 antibody dilution: 1:5000
Rabbit Polyclonal antibody to Chk1 (checkpoint kinase 1)Required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. 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. Inhibition of CDC25 activity leads to increased inhibitory tyrosine phosphorylation of CDK-cyclin complexes and blocks cell cycle progression. Binds to and phosphorylates RAD51 at 'Thr-309', which may enhance the association of RAD51 with chromatin and promote DNA repair by homologous recombination. Binds to and phosphorylates TLK1 at 'Ser-743', which prevents the TLK1-dependent phosphorylation of the chromatin assembly factor ASF1A. This may affect chromatin assembly during S phase or DNA repair. May also phosphorylate multiple sites within the C-terminus of TP53, which promotes activation of TP53 by acetylation and enhances suppression of cellular proliferation.
Immunogen
Carrier-protein conjugated synthetic peptide encompassing a sequence within the center region of human Chk1. The exact sequence is proprietary.
Key Feature
Clonality
Polyclonal
Isotype
IgG
Host Species
Rabbit
Tested Applications
WB
*Optimal dilutions/concentrations should be determined by the researcher.
Species Reactivity
Human
Concentration
1mg/ml (Please refer to the vial label for the specific concentration)
Purification
Affinity purified
Target Information
Gene Synonyms
CHEK1 , checkpoint kinase 1
Target
CHK1
Molecular Weight(MW)
54 kDa (note) (6)
Cellular Localization
Nucleus , Cytoplasm
Application
Application
Chk1 antibody detects CHK1 protein by western blot analysis. A. 30 μg 293T whole cell lysate/extract B. 30 μg whole cell lysate/extract of human Chk1-transfected 293T cells 10 % SDS-PAGE Chk1 antibody dilution: 1:5000
Positive Control
human Chk1-transfected 293T
Application Notes
*Optimal dilutions/concentrations should be determined by the researcher.
Additional Information
Form
Liquid
Storage Instructions
Keep as concentrated solution. Aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
Storage Buffer
1XPBS, 1% BSA, 20% Glycerol (pH7). 0.025% ProClin 300 was added as a preservative.