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孕激素受体重组兔单克隆抗体
包装与价格:
产品名称 Progesterone Receptor Recombinant Rabbit mAb 产品介绍
商品属性 产品介绍Estrogen and progesterone receptor are members of a family of transcription factors that are regulated by the binding of their cognate ligands. The interaction of hormone-bound estrogen receptors with estrogen responsive elements(EREs) alters transcription of ERE-containing genes. The carboxy terminal region of the estrgen receptor contains the ligand binding domain, the amino terminus serves as the transactivation domain, and the DNA binding domain is centrally located. Two forms of estrogen receptor have been identified, ER alpha and ER beta. ER alpha and ER beta have been shown to be differentially activated by various ligands. The biological response to progesterone is mediated by two distinct forms of the human progesterone receptor (hPR-Aand hPR-B), which arise from alternative splicing. In most cells, hPR-B functions as a transcriptional activator of progesterone-responsive gene, whereas hPR-A function as a transcriptional inhibitor of all steroid hormone receptors.
商品详情 英文名称Progesterone Receptor Recombinant Rabbit mAb 中文名称孕激素受体重组兔单克隆抗体 别 名NR3C3; Nuclear receptor subfamily 3 group C member 3; PGR; PR; PRA; PRB; Progesterone receptor; Progestin receptor form A; Progestin receptor form B; PRGR_HUMAN; Progestin receptor form A; Progestin receptor form B. 抗体来源Rabbit 克隆类型Recombinant 克 隆 号9A7 交叉反应Human 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103 kDa 检测分子量 细胞定位细胞核 细胞浆 性 状Liquid 浓 度1mg/ml 免 疫 原A synthesized peptide derived from human Progesterone receptor: 1-49 亚 型IgG 纯化方法affinity purified by Protein A 缓 冲 液PBS, Glycerol, BSA. 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 靶点与功能 胰岛素原(Proinsulin)是由胰岛β细胞合成的单链多肽前体(110个氨基酸),通过蛋白酶水解去除C肽后生成胰岛素(A链+B链)和C肽。其核心功能与临床意义包括: 生理过程:作为胰岛素生物合成的中间产物,反映β细胞的合成能力(正常血清胰岛素原占总胰岛素活性的10%-15%); 疾病关联:1型糖尿病患者因β细胞破坏导致胰岛素原分泌增加(比值>20%),2型糖尿病伴胰岛素抵抗时血清胰岛素原水平升高,胰岛素瘤患者可出现胰岛素原/胰岛素比值异常(>0.3); 研究价值:用于评估β细胞功能、鉴别诊断低血糖(如胰岛素瘤vs外源性胰岛素注射)及糖尿病分型研究。 实验操作关键要点 ELISA定量检测(血清样本): 包被优化:多克隆抗体用0.05M碳酸盐缓冲液(pH9.6)稀释至1μg/mL,4℃包被过夜,PBST洗涤3次; 样本处理:血清需1:100稀释(含1% BSA的PBS),37℃孵育2小时,避免高脂样本干扰(可加1% Triton X-100); 信号检测:HRP标记二抗(1:5000)室温孵育1小时,TMB显色15分钟,450nm读值(标准曲线范围0.1-20ng/mL)。 IHC-P组织定位(胰腺切片): 抗原修复:柠檬酸盐缓冲液(pH6.0)微波修复10分钟,增强β细胞胞质信号; 阳性对照:正常胰腺组织胰岛β细胞呈棕黄色颗粒状阳性,胰岛素瘤组织表达增强; 封闭处理:5%羊血清+0.3% Triton X-100室温封闭1小时,降低非特异性结合。 WB验证(细胞裂解液): 样本制备:MIN6细胞(小鼠胰岛β细胞系)用含蛋白酶抑制剂的RIPA裂解液冰上裂解30分钟,12000g离心取上清; 电泳条件:15% SDS-PAGE凝胶(分离小分子量蛋白),恒压100V电泳90分钟,转PVDF膜(0.22μm); 抗体孵育:一抗1:1000稀释(5%脱脂奶粉+TBST),4℃孵育过夜,曝光时间30秒(避免信号过强)。 公司正在出售的产品
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