磷酸化细胞周期检测点激酶1抗体上海沪震实业有限公司

性能参数

产品名称: 磷酸化细胞周期检测点激酶1抗体
英文名称: phospho-CHEK1 (Ser345)
抗体货号: hz-5278R
产品规格: 100ul
级    别: , , 分析纯,
产品产地: 中国/上海
品牌商标: HZbscience
价    格: 1580元
抗原: IgG
抗原来源: Rabbit
抗体来源: Rabbit
适用物种: 见说明书
应用范围: WB=1:500-2000 ELISA=1:500-1000 IHC-P=1:400-800 IHC-F=1:400-800 ICC=1:100-500 IF=1:100-500
更新时间: 2018/5/13 14:44:00
详细资料:  实验方法技术资料
浏览人数:9
诚信指数:730点
了解更多:进入公司展台
使用范围:仅限科研使用,不能应用于临床
点此求购
在线QQ: 我是1594652376,请问我有什么可以帮到您呢?
生物在线声明:以上所展示的信息由企业自行提供,内容的真实性、准确性和合法性由发布企业负责。生物在线对此不承担任何保证责任。

供应商联系卡

上海沪震实业有限公司
地址:
上海市杨浦区密云路1018号复旦科技园808室
邮编:
200612
电话:
021-60345367
传真:
021-31320307
联系人:
陈先生
所在区域:
上海·中国-上海
邮件:
公司展台:
在线QQ:
我是1594652376,请问我有什么可以帮到您呢?
扫一扫,关注我们

产品详细描述

 Rabbit Anti-phospho-CHEK1 (Ser345) antibody

 

产品编号 hz-5278R
英文名称 phospho-CHEK1 (Ser345)
中文名称 ***酸化细胞周期检测点激酶1抗体
别    名 Chk1 (Phospho-Ser345); CHEK1 (phospho Ser345); CHEK1 (phospho Ser345); p-CHEK1 (Ser345); 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.  
   
产品类型 ***酸化抗体 
研究领域 肿瘤  免疫学  信号转导  细胞凋亡  转录调节因子  激酶和***酸酶  
抗体来源 Rabbit
克隆类型 Polyclonal
交叉反应 Human, Mouse, Rat, Chicken, Dog, Cow, Horse, Rabbit, 
产品应用 WB=1:500-2000 ELISA=1:500-1000 IHC-P=1:400-800 IHC-F=1:400-800 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/ml
免 疫 原 KLH conjugated Synthesised phosphopeptide derived from human CHEK1 around the phosphorylation site of Ser345:SF(p-S)QP 
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.
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.

Subunit:
Interacts (phosphorylated by ATR) with RAD51. Interacts with and phosphorylates CLSPN, an adapter protein that regulates the ATR-dependent phosphorylation of CHEK1. Interacts with BRCA1. Interacts with and phosphorylates CDC25A, CDC25B and CDC25C. Interacts with FBXO6, which regulates CHEK1. Interacts with PPM1D, which regulates CHEK1 through dephosphorylation. Interacts with TIMELESS; DNA damage-dependent. Interacts with FEM1B; activates CHEK1 in response to stress. Interacts with TLK1. Interacts with XPO1 and YWHAZ. Isoform 1 associates with isoform 2, the interaction is disrupted upon phosphorylation by ATR.

Subcellular Location:
Nucleus. Cytoplasm. Cytoplasm, cytoskeleton, centrosome. Note=Nuclear export is mediated at least in part by XPO1/CRM1. Also localizes to the centrosome specifically during interphase, where it may protect centrosomal CDC2 kinase from inappropriate activation by cytoplasmic CDC25B.

Tissue Specificity:
Expressed ubiquitously with the most abundant expression in thymus, testis, small intestine and colon.

Post-translational modifications:
Phosphorylated by ATR in a RAD17-dependent manner in response to ultraviolet irradiation and inhibition of DNA replication. Phosphorylated by ATM in response to ionizing irradiation. ATM and ATR can both phosphorylate Ser-317 and Ser-345 and this results in enhanced kinase activity. Phosphorylation at Ser-345 induces a change in the conformation of the protein, activates the kinase activity and is a prerequisite for interaction with FBXO6 and subsequent ubiquitination at Lys-436. Phosphorylation at Ser-345 also increases binding to 14-3-3 proteins and promotes nuclear retention. Conversely, dephosphorylation at Ser-345 by PPM1D may contribute to exit from checkpoint mediated cell cycle arrest. Phosphorylation at Ser-280 by AKT1/PKB, may promote mono and/or diubiquitination. Also phosphorylated at undefined residues during mitotic arrest, resulting in decreased activity. 
Ubiquitinated. Mono or diubiquitination promotes nuclear exclusion (By similarity). The activated form (phosphorylated on Ser-345) is polyubiquitinated at Lys-436 by some SCF-type E3 ubiquitin ligase complex containing FBXO6 promoting its degradation. Ubiquitination and degradation are required to terminate the checkpoint and ensure that activated CHEK1 does not accumulate as cells progress through S phase, when replication forks encounter transient impediments during normal DNA replication.

Similarity:
Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. NIM1 subfamily. 
Contains 1 protein kinase domain.

SWISS:
O14757

Gene ID:
1111

Database links:

Entrez Gene: 1111 Human

Entrez Gene: 12649 Mouse

Entrez Gene: 140583 Rat

Omim: 603078 Human

SwissProt: O14757 Human

SwissProt: O35280 Mouse

SwissProt: Q91ZN7 Rat

Unigene: 24529 Human

Unigene: 16753 Mouse

Unigene: 33267 Rat



Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. 

Chk1作为Cdks的调节参与细胞周期调节过程,是生物进化过程中非常保守的蛋白激酶,在DNA损伤引起的细胞周期检测点调节中有着非常重要的作用.在细胞周期检测点信号传导通路中,Chkl和Chk2起着重要作用,主要参与G2/M期细胞周期检测点信号传导

生物在线声明:以上所展示的信息由企业自行提供,内容的真实性、准确性和合法性由发布企业负责。生物在线对此不承担任何保证责任。

查看磷酸化细胞周期检测点激酶1抗体产品的用户还对以下产品感兴趣

暂无

ADVERTISEMENT

找不到您所需的产品,发布求购试试?

标题:*
描述:
姓名:*
Email:*
单位:*
电话:*
地址:*
邮编:
资料: 需要 不需要
报价: 需要 不需要