Checkpoint kinase 1encoded by CHEK1 belongs to the Ser/Thr protein kinase family. It is required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. This protein acts to integrate signals from ATM and ATR, two cell cycle proteins involved in DNA damage responses, that also associate with chromatin in meiotic prophase I. Phosphorylation of CDC25A protein phosphatase by this protein is required for cells to delay cell cycle progression in response to double-strand DNA breaks. Several alternatively spliced transcript variants have been found for CHEK1.蛋白別名為：CHEK1; CHK1; Serine/threonine-protein kinase Chk1; CHK1 checkpoint homolog; Cell cycle checkpoint kinase; Checkpoint kinase-1;基因ID為：1111；蛋白質ID:O14757
應用類型
WB，IHC-p，ELISA補充：最優的抗體稀釋比例需要基于客戶實驗進行優化.建議的起始稀釋比例如下: WB: 1:500-1:2000, IHC-p: 1:100-1:300, ELISA: 1:40000. Not yet tested in other applications.
免疫原
合成多肽：human Chk1 around the non-phosphorylation site of S345.
