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波形蛋白单克隆抗体
包装与价格:
产品名称 Vimentin Mouse mAb 产品介绍
商品属性 产品介绍This gene encodes a member of the intermediate filament family. Intermediate filamentents, along with microtubules and actin microfilaments, make up the cytoskeleton. The protein encoded by this gene is responsible for maintaining cell shape, integrity of the cytoplasm, and stabilizing cytoskeletal interactions. It is also involved in the immune response, and controls the transport of low-density lipoprotein (LDL)-derived cholesterol from a lysosome to the site of esterification. It functions as an organizer of a number of critical proteins involved in attachment, migration, and cell signaling. Mutations in this gene causes a dominant, pulverulent cataract.[provided by RefSeq, Jun 2009]
商品详情 英文名称Vimentin Mouse mAb 中文名称波形蛋白单克隆抗体 别 名FLJ36605; OTTHUMP00000019224; VIM; VIME_HUMAN; Vimentin. 研究领域肿瘤 发育生物学 神经生物学 信号转导 干细胞 细胞类型标志物 抗体来源Mouse 克隆类型Monoclonal 克 隆 号3B7 交叉反应Human 产品应用WB=1:1000-10000,IHC-P=1:200-1000,IHC-F=1:200-1000,IF=1:200-1000,Flow-Cyt=1ug/Test,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53 kDa 检测分子量 细胞定位细胞浆 细胞外基质 性 状Liquid 浓 度1mg/ml 免 疫 原Recombinant human Vimentin Protein 亚 型IgG 纯化方法affinity purified by Protein G 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 靶点与功能 Vimentin是III型中间丝蛋白,核心功能与研究价值包括: 细胞骨架支撑:通过多聚体网络维持间质细胞(成纤维细胞、内皮细胞、免疫细胞)的机械强度,在细胞迁移时通过磷酸化-去磷酸化动态调节细胞形态; EMT标志物:上皮细胞发生EMT时Vimentin表达上调(如乳腺癌细胞中表达量增加5-10倍),与E-钙粘蛋白(E-cadherin)表达负相关,是肿瘤侵袭转移的早期预警指标; 疾病关联:在肺纤维化(成纤维细胞活化)、慢性肾病(肾小管间质纤维化)、恶性黑色素瘤中高表达,CAFs中Vimentin阳性率与肿瘤预后不良显著相关(HR=1.68,95%CI 1.32-2.14)。 实验操作关键要点 WB检测(EMT模型样本): 样本处理:TGF-β1(10ng/mL)诱导A549细胞48小时,RIPA裂解液(含PhosSTOP磷酸酶抑制剂)冰上裂解30分钟; 电泳条件:10% SDS-PAGE凝胶,恒压80V浓缩胶、120V分离胶,电泳90分钟,转膜至0.45μm PVDF膜; 结果判读:抗体1:1000稀释,4℃孵育过夜,57kDa处显带,EMT组灰度值为对照组的6-8倍。 IHC-P肿瘤间质染色: 抗原修复:柠檬酸盐缓冲液(pH6.0)微波修复15分钟(石蜡切片),癌间质成纤维细胞胞质呈棕黄色阳性(CAFs特征); 双标策略:与α-SMA抗体共染,Vimentin⁺/α-SMA⁺双阳性细胞为活化的CAFs(占间质细胞比例>30%提示预后不良); 阴性对照:正常上皮组织(如乳腺导管上皮)Vimentin阴性,可排除非特异性结合。 IF细胞骨架观察: 与F-肌动蛋白(Phalloidin) 共染,Vimentin(红色,中间丝)与F-actin(绿色,微丝)在迁移细胞前缘形成“双骨架网络”,EMT后Vimentin纤维排列更平行于迁移方向。 公司正在出售的产品
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