Chk1 (phospho Ser301) Antibody
CATALOG NUMBER: 80-037- Clonality: Polyclonal
- Tested Applications: WB
- Host Species: Rabbit
- Species Reactivity: Human, Mouse, Rat
- Conjugate: Unconjugated
- Size: 0.1 mg
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- HOST SPECIES: Rabbit
- SPECIES REACTIVITY: Human, Mouse, Rat
- IMMUNOGEN: Chk1 (phospho Ser301) antibody was raised against a peptide sequence around phosphorylation site of serine 301 (D-F-S (p)-P-V) derived from Human Chk1.
- CONJUGATE: Unconjugated
- TESTED APPLICATIONS: WB
- APPLICATION NOTE: Western Blot: 1:500~1:1000
- SPECIFICITY: The antibody detects endogenous level of Chk1 only when phosphorylated at serine 301.
- PREDICTED MOLECULAR WEIGHT: 55 kDa
Properties
- PURIFICATION: Antibodies were purified by affinity-chromatography using epitope-specific peptide.
- CLONALITY: Polyclonal
- ISOTYPE: IgG
- PHYSICAL STATE: Liquid
- BUFFER: Antibody supplied in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
- CONCENTRATION: 1 mg/mL
- STORAGE CONDITIONS: Store antibody at -20°C for up to one year.
Additional Info
- NCBI OFFICIAL SYMBOL: CHEK1
- ADDITIONAL NAMES: CHEK1, CHK1, CHK1 checkpoint homolog
- Protein Accession Number: NP_001107593.1
- PROTEIN GI NUMBER: 166295194
- NCBI GENE ID NUMBER: 1111
Background
- 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.
- 1: Enomoto M, et al. (2009)J Biol Chem 284, 34223-3
- 2: Ikegami Y, et al. (2008)Biochem Biophys Res Commun 377, 1227-31
- 3: Shiromizu T, et al. (2006)Genes Cells 11, 477-85
Disclaimer
- FOR RESEARCH USE ONLY
For additional information, visit ProSci's Terms & Conditions Page. - Disclaimer: Optimal dilutions/concentrations should be determined by the end user. The information provided is a guideline for product use. This product is for research use only.
Shipping Info
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