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细胞角蛋白5重组兔单抗
包装与价格:
产品名称 Cytokeratin 5 Recombinant Rabbit mAb 产品介绍
细胞角蛋白5重组兔单抗 商品属性
中文名称细胞角蛋白5重组兔单抗 别 名Active () Monoclonal Antibody Primary Antibody Unconjugated Rabbit Cytokeratin 5 Unmodified "WB(1:1000-2000)ICC(1:50-200); IHC(1:50-200); " 研究领域肿瘤 信号转导 抗体来源Rabbit 克隆类型Recombinant 克 隆 号2H5 交叉反应Human,Mouse,Rat 产品应用WB=1:1000-5000,IHC-P=1:500-2000,IHC-F=1:200-1000,IF=1:200-1000,ICC/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64 kDa 检测分子量 细胞定位细胞核 细胞浆 细胞外基质 性 状Liquid 浓 度1mg/ml 免 疫 原A synthesized peptide derived from human Cytokeratin 5: 550-590 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℃ 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Cytokeratins (CK) are intermediate filaments of epithelial cells, both in keratinising tissue (ie., skin) and non keratinising cells (ie., mesothelial cells). Although not a traditional marker for endothelial cells, cytokeratins have also been found in some microvascular endothelial cells. At least 20 different cytokeratins (CK) in the molecular range of 40 to 70 kDa and isoelectric points of 5 to 8.5 can be identified using two dimensional gel electrophoresis. Biochemically, most members of the CK family fall into one of two classes, type I (acidic polypeptides) and type II (basic polypeptides). At least one member of the acidic family and one member of the basic family is expressed in all epithelial cells. Defects in KRT5 are a cause of epidermolysis bullosa simplex. 靶点与功能
CK5是II型酸性细胞角蛋白,分子量约58kDa,主要与I型角蛋白(如CK14)形成异二聚体,构成上皮细胞中间丝网络。其核心功能包括: 结构支撑:维持复层鳞状上皮(如皮肤、食管、乳腺基底细胞)的机械稳定性; 分化标志物:作为乳腺基底细胞、鳞状上皮干细胞的特异性标志物,用于上皮细胞亚型鉴定; 临床价值:在鳞状细胞癌(如肺鳞癌、皮肤鳞癌) 中高表达,与肿瘤侵袭性及预后相关,是病理分型的重要指标。 实验操作关键要点
IHC-P优化(乳腺组织切片): 抗原修复:采用柠檬酸钠缓冲液(pH6.0) 微波修复15分钟(95℃),增强胞质信号; 阳性定位:基底细胞层胞质呈棕黄色细丝状阳性,与CK14共表达(可用于双标验证); 对照设置:推荐使用正常皮肤组织(阳性对照,表皮基底层强阳性)和腺癌组织(阴性对照)。 WB检测注意事项: 样本处理:RIPA裂解液(含1mM PMSF)冰上裂解30分钟,12000g离心取上清;若检测干细胞样本,需添加蛋白酶抑制剂(如EDTA); 电泳条件:10% SDS-PAGE凝胶,恒压80V浓缩胶、120V分离胶,目标条带约58kDa; 抗体孵育:一抗1:1500稀释(5% BSA+TBST),4℃摇床孵育过夜,HRP二抗(山羊抗兔)1:5000室温孵育1小时。 公司正在出售的产品
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