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P-糖蛋白重组兔单克隆抗体
包装与价格:
产品名称 P Glycoprotein Recombinant Rabbit mAb 产品介绍
P-糖蛋白重组兔单克隆抗体 商品属性
产品介绍 中文名称P-糖蛋白重组兔单克隆抗体 别 名ABC20; ABCB1; ATP binding cassette, sub family B(MDR/TAP), member 1; ATP-binding cassette sub-family B member 1; CD243; CLCS; Colchicin sensitivity; Doxorubicin resistance; GP170; MDR1; MDR1_HUMAN; Multidrug resistance 1; Multidrug resistance protein 1; P glycoprotein 1; P gp; PGY1. 抗体来源Rabbit 克隆类型Recombinant 克 隆 号2C11 交叉反应Human,Mouse,Rat 产品应用WB=1:500-2000,IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500 not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量141 kDa 检测分子量 细胞定位细胞膜 性 状Liquid 浓 度1mg/ml 免 疫 原Recombinant Human P-glycoprotein 1 protein 亚 型IgG 纯化方法affinity purified by Protein A 缓 冲 液1*TBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.02% Proclin300. 保存条件Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles. 注意事项This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMedPubMed 产品介绍 is one synthetic peptide derived from human MDR1. P Glycoprotein, the product of the MDR1 gene, is expressed in distinct non-malignant cells, typically cells with secretory and excretory functions. It is assumed to function as an ATP-dependent drug efflux pump with broad substrate specificity. The highest expression of P Glycoprotein has been observed in kidney (proximal tubules), liver (bile canaliculi), adrenal gland and intestine, suggesting that the primary role of P Glycoprotein is in the normal secretion of physiological metabolites and ingested chemicals into bile, urine and the lumen of the intestinal tract. Elevated levels of P Glycoprotein have also been reported in multidrug-resistant cell lines and in colon, endometrial, ovarian, and breast tumors, as well as in sarcomas and leukemias / lymphomas. 靶点与功能
p21(Cyclin-Dependent Kinase Inhibitor 1A,CDKN1A)是Cip/Kip家族细胞周期抑制剂,核心功能与研究价值包括: 细胞周期阻滞:通过与Cyclin-CDK2/4复合物结合,抑制其激酶活性,使细胞停滞于G1期(DNA损伤时p53依赖的经典通路); 肿瘤抑制作用:在野生型p53肿瘤中高表达,通过下调PCNA活性抑制DNA复制,是p53功能的“下游执行者”(p21缺失会导致p53介导的凋亡失效); 药物研发标记:化疗药物(如顺铂)诱导DNA损伤后,p21表达上调可作为药物有效性的早期指标(24小时内即可检测到表达变化)。 实验操作关键要点
WB检测(DNA损伤模型): 样本处理:HCT116细胞(p53+/+)经10μM顺铂处理24小时,RIPA裂解液(含1mM PMSF+磷酸酶抑制剂)冰上裂解30分钟,12000g离心取上清; 电泳条件:15% SDS-PAGE凝胶(因分子量小),恒压80V浓缩胶、120V分离胶,转膜使用0.22μm PVDF膜(200mA恒流45分钟); 抗体孵育:一抗1:1000稀释(5% BSA+TBST),4℃孵育过夜,HRP二抗(山羊抗兔)1:5000室温孵育1小时,曝光时间20秒(21kDa处可见清晰条带,顺铂处理组表达显著上调)。 IHC-P肿瘤组织染色: 抗原修复:柠檬酸盐缓冲液(pH6.0)微波修复15分钟(石蜡切片),细胞核信号增强; 阳性定位:正常组织中静止期细胞(如肝细胞)核呈弱阳性,p53野生型肿瘤中DNA损伤区域(如放疗后)核阳性率显著升高(与Ki-67表达负相关); 对照设置:p21敲除小鼠组织(阴性对照)和UV照射的HaCaT细胞(阳性对照,核强阳性)。 IF双标实验(细胞周期共定位): 推荐与Cyclin D1抗体共染,使用Alexa Fluor 488(绿色,p21核定位)和594(红色,Cyclin D1核质定位),激光共聚焦观察G1期阻滞细胞中二者共定位(p21-Cyclin D1-CDK4复合物形成)。 公司正在出售的产品
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