FGF-2 Polyclonal Antibody
¥680.00
- 产品信息
商品描述
靶点-Target
Chk1
反应性
Human,Mouse,Rat
应用
WB,IHC,IF,IP,ELISA
宿主物种-Host Species
Rabbit
同种型-Isotype
IgG,Kappa
MW(Calculated)
54kD
MW(Observed)
50kD
推荐稀释比
IHC 1:200-1:1000;WB 1:2000-1:10000;IF 1:200-1:1000;ELISA 1:5000-1:20000;IP 1:50-1:200;
组成
PBS, 50% glycerol, 0.05% Proclin 300, 0.05%BSA
纯化工艺
Protein A
储存
-15°C to -25°C/1 year(Do not lower than -25°C)
克隆性
Monoclonal
克隆号
PT0744R
特异性
Chk1 (Phospho Ser317) Antibody detects endogenous levels of Chk1 protein only when phosphorylated at S317.The name of modified sites may be influenced by many factors, such as species (the modified site was not originally found in human samples) and the change of protein sequence (the previous protein sequence is incomplete, and the protein sequence may be prolonged with the development of protein sequencing technology). When naming, we will use the "numbers" in historical reference to keep the sites consistent with the reports. The antibody binds to the following modification sequence (lowercase letters are modification sites):SSsQP
基因名称
CHEK1
蛋白名称
Serine/threonine-protein kinase Chk1
别名
CHEK1;CHK1;Serine/threonine-protein kinase Chk1;CHK1 checkpoint homolog;Cell cycle checkpoint kinase;Checkpoint kinase-1
Organism-1
Human
基因ID-1
1111
SwissProt-1
O14757
Organism-2
Mouse
基因ID-2
12649
SwissProt-2
O35280
Organism-3
Rat
基因ID-3
140583
SwissProt-3
Q91ZN7
背景
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],
细胞定位
Catalytic activity:ATP + a protein = ADP + a phosphoprotein.,Domain:The autoinhibitory region (AIR) inhibits the activity of the kinase domain.,Function:Required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. 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. Inhibition of CDC25 activity leads to increased inhibitory tyrosine phosphorylation of CDK-cyclin complexes and blocks cell cycle progression. Binds to and phosphorylates RAD51 at 'Thr-309', which may enhance the association of RAD51 with chromatin and promote DNA repair by homologous recombination. Binds to and phosphorylates TLK1 at 'Ser-743', which prevents the TLK1-dependent phosphorylation of the chromatin assembly factor ASF1A. This may affect chromatin assembly during S phase or DNA repair. May also phosphorylate multiple sites within the C-terminus of TP53, which promotes activation of TP53 by acetylation and enhances suppression of cellular proliferation.,PTM: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 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. May also be phosphorylated at Ser-280 by AKT1/PKB, which may promote mono and/or diubiquitination. Also phosphorylated at undefined residues during mitotic arrest, which results in decreased activity.,PTM:Ubiquitinated. Mono or diubiquitination promotes nuclear exclusion.,similarity:Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. NIM1 subfamily.,similarity:Contains 1 protein kinase domain.,subcellular location: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.,subunit:Interacts with BRCA1, CLSPN, PPM1D, RAD51, TIMELESS, XPO1/CRM1 and YWHAZ/14-3-3 zeta.,tissue specificity:Expressed ubiquitously with the most abundant expression in thymus, testis, small intestine and colon.,
