Chk1 (Ab 317) Antibody | 79-324

Chk1 (Ab 317) Antibody | 79-324 | Gentaur UK, US & Europe Distribution

Host: Rabbit

Reactivity: Human, Mouse

Homology: N/A

Immunogen: Chk1 (Ab-317) antibody was raised against a peptide sequence around aa.315~319 (S-S-S-Q-P) derived from Human Chk1.

Research Area: Cell Cycle

Tested Application: WB, IHC

Application: Western Blot: 1:500~1:1000, Immunohistochemistry: 1:50~1:100

Specificiy: This antibody detects endogenous level of total Chk1 protein.

Positive Control 1: N/A

Positive Control 2: N/A

Positive Control 3: N/A

Positive Control 4: N/A

Positive Control 5: N/A

Positive Control 6: N/A

Molecular Weight: 56 kDa

Validation: N/A

Isoform: N/A

Purification: Antibodies were purified by affinity-chromatography using epitope-specific peptide.

Clonality: Polyclonal

Clone: N/A

Isotype: N/A

Conjugate: Unconjugated

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 Condition: Store antibody at -20˚C for up to one year.

Alternate Name: CHK1, PKCB, PRKCB1, CHEK1

User Note: N/A

BACKGROUND: Chek1 is a protein kinase that inhibits mitotic entry after DNA damage, required for the DNA damage checkpoint and is strongly similar to murine Chek1. Checkpoint pathways control the order and timing of cell cycle transitions and ensure that critical events, such as DNA replication and chromosome segregation, are completed with high fidelity. The mouse and human proteins share 90% sequence identity through the protein kinase domains. The sequence of the 476-amino acid human Chek1 protein is 29%, 40%, and 44% identical to those of the fission yeast Chek1, C. elegans Chek1, and Drosophila 'grapes' (Grp) proteins, respectively. Chek1 is expressed ubiquitously as an approximately 2.4-kb mRNA, with the most abundant expression in thymus, testis, small intestine, and colon. The protein has altered mobility when isolated from cells treated with ionizing radiation, indicating that Chek1 is modified in response to DNA damage. In vitro, Chek1 directly phosphorylates a regulator of CDC2 tyrosine phosphorylation, CDC25C. In response to DNA damage, Chek1 phosphorylates and inhibits CDC25C, thus preventing activation of the CDC2-Cyclin-B complex and mitotic entry