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p-Chk1 (S317) pAb
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Catalogue No : BS4040
| Host | Reactivity | Size | Application | stock | price | cart |
| Rabbit | H,M,R | 100μg | WB IHC |  |
298.00 |  |
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Contact information
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Product
1 mg/ml in Phosphate buffered saline (PBS) with 0.05% sodium azide, approx. pH 7.2.
Molecular Weight
~ 54 kDa
Purification & Purity
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).
Specificity
p-Chk1 (S317) pAb detects endogenous levels of Chk1 protein only when phosphorylated at S317.
Applications (Recommended Dilutions)
WB: 1:500~1:1000 IHC: 1:50~1:200
Western Blot(WB)
Western blot (WB) analysis of p-Chk1 (S317) pAb in extracts from MCF7 cells.
Storage&Stability
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.
Background
Cell cycle events are regulated by the sequential activation and deactivation of cyclin dependent kinases (Cdks) and by proteolysis of cyclins. Chk1 and Chk2 are involved in these processes as regulators of Cdks. Chk1 and Chk2 both function as essential components in the G2 DNA damage checkpoint by phosphorylating Cdc25C in response to DNA damage. Phosphorylation inhibits Cdc25C activity, thereby blocking mitosis. Cdc25A, Cdc25B and Cdc25C protein tyrosine phosphatases function as mitotic activators by dephosphorylating Cdc2 p34 on regulatory tyrosine residues. It has also been shown that Chk1 can phosphorylate Wee 1 in vitro, providing evidence that the hyperphosphorylated form of Wee 1, seen in cells delayed by Chk1 overexpression, is due to phosphorylation by Chk1. Chk1 is phosphorylated on Serine 345 (S345) in response to UV, IR and hydroxyurea (HU). Chk1 plays an essential role in the mammalian DNA damage checkpoint, embryonic development and tumor suppression.