2341 Phospho-Chk1 (Ser345) Antibody #2341

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产品详细参数如下>>>>

产品名称：Phospho-Chk1 (Ser345) Antibody #2341
货号：2341
品牌：CST(cell signaling)
抗体来源：Rabbit
克隆类型： Polyclonal
规格：

No.	Size	Price
2341P	40 ul (4 western blots)	询价
2341S	100 ul (10 western blots)	询价
2341L	300 ul (30 western blots)	询价

抗体应用：

Applications	Reactivity	Sensitivity	MW (kDa)	Source
W	H M R Mk	Endogenous	56	Rabbit

Applications Key:  W=Western Blotting
Reactivity Key:  H=Human  M=Mouse  R=Rat  Mk=Mon key
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on sequence homology.
特异性/敏感度： Phospho-Chk1 (Ser345) Antibody detects endogenous levels of Chk1 only when phosphorylated at serine 345. This antibody does not cross-react with Chk1 when phosphorylated at other sites.
来源及纯化方法： Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser345 of human Chk1. Antibodies are purified by protein A and peptide affinity chromatography.
抗体背景：

Chk1 kinase acts downstream of ATM/ATR kinase and plays an important role in DNA damage checkpoint control, embryonic development, and tumor suppression (1). Activation of Chk1 involves phosphorylation at Ser317 and Ser345 and occurs in response to blocked DNA replication and certain forms of genotoxic stress (2). While phosphorylation at Ser345 serves to localize Chk1 to the nucleus following checkpoint activation (3), phosphorylation at Ser317 along with site-specific phosphorylation of PTEN allows for reentry into the cell cycle following stalled DNA replication (4). Chk1 exerts its checkpoint mechanism on the cell cycle, in part, by regulating the cdc25 family of phosphatases. Chk1 phosphorylation of cdc2 targets it for proteolysis and inhibits its activity through 14-3-3 binding (5). Activated Chk1 can inactivate cdc25C via phosphorylation at Ser216, blocking the activation of cdc2 and transition into mitosis (6). Centrosomal Chk1 has been shown to phosphorylate cdc25B and inhibit its activation of CDK1-cyclin B1, thereby abrogating mitotic spindle formation and chromatin condensation (7). Furthermore, Chk1 plays a role in spindle checkpoint function through regulation of Aurora B and BubR1 (8). Research studies have implicated Chk1 as a drug target for cancer therapy as its inhibition leads to cell death in many cancer cell lines (9).

关键词：CST，抗体，一抗{byao_back}{byao_back2}

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