Anti-Phospho-CHEK1 （Ser296）抗体The protein encoded by this gene belongs to the Ser/Thr protein kinase family. It is required for checkpoint mediated cell cycle arrest in response to DNA damage

产品编号 yb-11226R
英文名称 Anti-Phospho-CHEK1 (Ser296)抗体
中文名称 磷酸化细胞周期检测点激酶1抗体
别    名 Chk1 (Phospho-Ser296); Chk1 (phospho S296);Phospho-Chk1 (Ser296); p-Chk1 (phospho S296); Phospho-Chk1(S296); Cell cycle checkpoint kinase; Checkpoint, S. pombe, homolog of, 1; Checkpoint kinase 1; Checkpoint kinase 1 homolog (S. pombe); CHEK 1; CHEK-1; CHEK1; Chk 1; Chk1; CHK1 checkpoint homolog (S. pombe); EC 2.7.11.1; rad27; Serine/threonine protein kinase Chk1; Serine/threonine-protein kinase CHK1; STT3, subunit of the oligosaccharyltransferase complex, homolog A (S. cerevisiae); C85740; CHK1_HUMAN.
Anti-Phospho-CHEK1 (Ser296)抗体
说 明 书 0.1ml  
产品类型 磷酸化抗体 
研究领域 肿瘤  激酶和磷酸酶  表观遗传学  
抗体来源 Rabbit
克隆类型 Polyclonal
交叉反应 Human, Dog, Pig, Cow, Horse, Rabbit, Sheep, 
产品应用 WB=1:100-500 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500 （石蜡切片需做抗原修复） 
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
分 子 量 54kDa
细胞定位 细胞核 细胞浆 
性    状 Lyophilized or Liquid
浓    度 1mg/1ml
免 疫 原 KLH conjugated Synthesised phosphopeptide derived from human CHEK1 isoform b around the phosphorylation site of Ser296
亚    型 IgG
纯化方法 affinity purified by Protein A
储 存 液 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
保存条件 Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
Anti-Phospho-CHEK1 (Ser296)抗体
PubMed PubMed
产品介绍 background:
The protein encoded by this gene 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 this gene. [provided by RefSeq, Oct 2011].

Function:
Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. This regulation is achieved by a number of mechanisms that together help to preserve the integrity of the genome. 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. Phosphorylation of CDC25A at 'Ser-76' primes the protein for subsequent phosphorylation at 'Ser-79', 'Ser-82' and 'Ser-88' by NEK11, which is required for polyubiquitination and degradation of CDCD25A. Inhibition of CDC25 leads to increased inhibitory tyrosine phosphorylation of CDK-cyclin complexes and blocks cell cycle progression. Also phosphorylates NEK6. Binds to and phosphorylates RAD51 at 'Thr-309', which promotes the release of RAD51 from BRCA2 and enhances the association of RAD51 with chromatin, thereby promoting DNA repair by homologous recombination. Phosphorylates multiple sites within the C-terminus of TP53, which promotes activation of TP53 by acetylation and promotes cell cycle arrest and suppression of cellular proliferation. Also promotes repair of DNA cross-links through phosphorylation of FANCE. Binds to and phosphorylates TLK1 at 'Ser-743', which prevents the TLK1-dependent phosphorylation of the chromatin assembly factor ASF1A. This may enhance chromatin assembly both in the presence or absence of DNA damage. May also play a role in replication fork maintenance through regulation of PCNA. May regulate the transcription of genes that regulate cell-cycle progression through the phosphorylation of histones. Phosphorylates histone H3.1 (to form H3T11ph), which leads to epigenetic inhibition of a subset of genes. May also phosphorylate RB1 to promote its interaction with the E2F family of transcription factors and subsequent cell cycle arrest. 
Isoform 2: Endogenous repressor of isoform 1, interacts with, and antagonizes CHK1 to promote the S to G2/M phase transition.Anti-Phospho-CHEK1 (Ser296)抗体