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CD8重组兔单抗
包装与价格:
产品名称 CD8 Recombinant Rabbit mAb 产品介绍
商品属性 产品介绍 The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. The CD8 antigen acts as a coreceptor with the T-cell receptor on the T lymphocyte to recognize antigens displayed by an antigen presenting cell in the context of class I MHC molecules. The coreceptor functions as either a homodimer composed of two alpha chains or as a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains. This gene encodes the CD8 alpha chain. Multiple transcript variants encoding different isoforms have been found for this gene.
商品详情 英文名称CD8 Recombinant Rabbit mAb 中文名称CD8重组兔单抗 别 名CD8 antigen, alpha polypeptide(p32); CD8a; CD8a antigen; CD8a molecule; CD8A_HUMAN; Leu2; Leu2 T lymphocyte antigen; MAL; OKT8 T cell antigen; p32; T cell antigen Leu2; T cell co receptor; T-cell surface glycoprotein CD8 alpha chain; T-lymphocyte differentiation antigen T8/Leu-2; T8 T cell antigen. 抗体来源Rabbit 克隆类型Recombinant 克 隆 号9A6 交叉反应Human 产品应用IHC-P=1:200-1000,IHC-F=1:200-1000,IF=1:200-1000 not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量26 kDa 检测分子量 性 状Liquid 浓 度1mg/ml 免 疫 原KLH conjugated synthetic peptide derived from human CD8 亚 型IgG 纯化方法affinity purified by Protein A 缓 冲 液0.01M TBS(pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. 保存条件Shipped at 4℃. Store at -20 °C 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 CD8是T细胞表面糖蛋白,以αα同源二聚体或αβ异源二聚体形式存在,核心功能包括: CTL细胞标志物:特异性表达于细胞毒性T细胞表面,是区分CD8⁺ T细胞(如细胞毒性T细胞)与CD4⁺ T细胞(辅助T细胞)的关键标志; MHCⅠ类分子共受体:与TCR协同识别抗原呈递细胞表面的MHCⅠ类-抗原肽复合物,增强T细胞活化信号; 免疫治疗关联:CD8⁺ T细胞浸润水平是肿瘤免疫治疗(如PD-1抑制剂)疗效的重要预测指标。 实验操作关键要点 流式细胞术(FC)优化: 样本制备:外周血单个核细胞(PBMC)经红细胞裂解液处理后,用含2% FBS的PBS洗涤2次,避免EDTA影响抗体结合; 抗体组合:推荐与CD3抗体联合标记(CD3⁺CD8⁺为CTL细胞),Alexa Fluor 488标记CD8(绿色),PE标记CD3(红色),流式细胞仪检测时设置FSC/SSC门排除死细胞。 IHC组织染色(肿瘤样本): 抗原修复:采用柠檬酸钠缓冲液(pH6.0) 微波修复15分钟(95℃),增强细胞膜表面CD8信号; 阳性定位:肿瘤浸润T细胞细胞膜呈棕黄色阳性,正常组织中主要分布于脾脏、淋巴结的T细胞区; 对照设置:以CD8⁺ T细胞丰富的脾脏组织作为阳性对照。 公司正在出售的产品
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上海谷研实业有限公司
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