CHEK1 antibody (pSer280)

Catalog No. ABIN363147

The Rabbit Polyclonal anti-CHEK1 antibody (ABIN363147) specifically detects CHEK1 in WB. The antibody is reactive with Human samples.

Quick Overview for CHEK1 antibody (pSer280) (ABIN363147)

Target: CHEK1 (Checkpoint Kinase 1 (CHEK1))

Reactivity: Human

Host: Rabbit

Clonality: Polyclonal

Conjugate: This CHEK1 antibody is un-conjugated

Application: Western Blotting (WB)

Product Details anti-CHEK1 Antibody

Binding Specificity: pSer280

Specificity: The antibody detects endogenous level of Chk1 only when phosphorylated at serine 280.

Purification: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.

Immunogen: Peptide sequence around phosphorylation site of pSer280 (V-T-S (p) -G-G) derived from Human Chk1. Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates.

Isotype: IgG

Application Details

Application Notes: Western blotting: 1:500-1:1000

Restrictions: For Research Use only

Handling

Format: Liquid

Concentration: 1 mg/mL

Buffer: Phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150 mM NaCl, 0.02 % sodium azide and 50 % glycerol.

Preservative: Sodium azide

Precaution of Use: This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

Storage: 4 °C/-20 °C

Storage Comment: Store at -20 °C for long term preservation (recommended). Store at 4 °C for short term use.

Target Details for CHEK1

Target: CHEK1 (Checkpoint Kinase 1 (CHEK1))

Alternative Name: Chk1

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.

Molecular Weight: 56 kDa

NCBI Accession: NP_001107

UniProt: O14757

Pathways: p53 Signaling, Apoptosis, Cell Division Cycle, DNA Damage Repair