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肌红蛋白抗体
包装与价格:
产品名称 Myoglobin Rabbit pAb 产品介绍
肌红蛋白抗体 商品属性
产品介绍 中文名称肌红蛋白抗体 别 名MYO; MB; MGC13548; PVALB; MYG_HUMAN. 研究领域肿瘤 心血管 细胞生物 免疫学 抗体来源Rabbit 克隆类型Polyclonal 克 隆 号 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17 kDa 检测分子量 细胞定位细胞浆 性 状Liquid 浓 度1mg/ml 免 疫 原Purified Human Myoglobin (Natural Human Myoglobin protein) 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Myoglobin is a small heme containing protein responsible for the oxygen deposition in muscle tissues. Only one form of myoglobin is expressed in cardiac and skeletal muscles. Myoglobin is known as a marker of myocardial damage and it has been used for more than three decades. Nowadays it still is very commonly used in clinical practice as an early marker of AMI. It appears in patient's blood 1 to 3 hours after onset of the symptoms, reaching peak level within 8 to 12 hours. Myoglobin is not so cardiac specific as cTnI or cTnT. Because of high myoglobin concentration in skeletal muscle tissue, even minor skeletal muscle injury results in the significant increase of myoglobin concentration in blood. Thus myoglobin is used together with cTnI or cTnT in clinical practise for better specificity in AMI diagnosis. 靶点与功能
ASP4(Aspartyl Protease 4,又称Napsin A)是天冬氨酸蛋白酶家族成员,核心功能与研究价值包括: 肿瘤诊断标志物:在肺腺癌(阳性率>80%) 和肾透明细胞癌(阳性率>90%) 中高表达,是鉴别肺腺癌与鳞癌(TTF-1⁺/Napsin A⁺)、肾透明细胞癌与嫌色细胞癌的关键指标; 蛋白酶活性:参与溶酶体蛋白降解和肿瘤微环境重塑,其高表达与肿瘤侵袭性正相关(肺腺癌Napsin A⁺患者淋巴结转移风险增加2.3倍); 临床转化价值:可通过IHC检测胸腔积液脱落细胞中的Napsin A表达,辅助肺癌早期诊断(灵敏度85%,特异性92%)。 实验操作关键要点
IHC-P肺腺癌诊断: 抗原修复:柠檬酸盐缓冲液(pH6.0)微波修复20分钟(石蜡切片),肿瘤细胞胞质呈棕黄色阳性; 对照设置:肺鳞癌组织(阴性对照)和正常肺泡Ⅱ型上皮细胞(阳性对照,胞质颗粒状阳性); 联合检测:与TTF-1抗体共染,肺腺癌双阳性率>90%,可排除鳞癌(TTF-1⁻/Napsin A⁻)。 WB验证(A549细胞系): 样本处理:肺腺癌细胞A549用含蛋白酶抑制剂(1mM PMSF) 的RIPA裂解液冰上裂解30分钟,12000g离心取上清; 电泳条件:12% SDS-PAGE凝胶,恒压80V浓缩胶、120V分离胶,转膜使用0.45μm PVDF膜(200mA恒流1.5小时); 抗体孵育:一抗1:500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45秒(35kDa处可见主条带)。 IF溶酶体定位(HepG2细胞): 与LAMP1抗体(溶酶体标志物)共染,ASP4(红色,AF594标记)与LAMP1(绿色)共定位,激光共聚焦观察溶酶体区“点状”阳性信号。 公司正在出售的产品
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