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肌红蛋白单克隆抗体
包装与价格:
产品名称 Myoglobin Mouse mAb 产品介绍
肌红蛋白单克隆抗体 商品属性
产品介绍 中文名称肌红蛋白单克隆抗体 别 名MYO; MB; MGC13548; PVALB; MYG_HUMAN. 研究领域肿瘤 细胞生物 免疫学 抗体来源Mouse 克隆类型Monoclonal 克 隆 号3A7 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 细胞外基质 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 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 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
肌红蛋白(Myoglobin,Mb)是骨骼肌和心肌细胞胞质中的氧结合蛋白(分子量约17kDa),核心功能与研究价值包括: 心肌损伤标志物:急性心肌梗死(AMI)发病后0.5-2小时血清Mb开始升高,4-12小时达峰值,是早期诊断AMI的敏感指标(阴性预测值>95%); 横纹肌溶解症监测:肌肉损伤后Mb大量释放,可导致急性肾损伤(Mb≥1000ng/mL时风险显著增加); 肌肉分化研究:在成肌细胞向肌管分化过程中,Mb表达量随肌细胞成熟度升高(C2C12细胞诱导分化7天后表达量增加5倍)。 实验操作关键要点
ELISA定量检测(血清样本): 包被优化:单克隆抗体用碳酸盐缓冲液(pH9.6)稀释至2μg/mL,4℃包被过夜,PBST洗涤3次; 样本处理:血清1:100稀释(含1% BSA的PBS),37℃孵育1.5小时,HRP标记二抗(山羊抗小鼠)1:8000稀释,TMB显色10分钟,450nm读取OD值(标准曲线范围0.1-200ng/mL); 临床参考:AMI诊断临界值为>70ng/mL,横纹肌溶解症预警值为>500ng/mL。 IHC-P心肌组织染色: 抗原修复:柠檬酸盐缓冲液(pH6.0)微波修复15分钟(石蜡切片),心肌细胞胞质呈棕黄色强阳性; 阳性对照:正常心肌组织(胞质弥漫性阳性),骨骼肌组织(弱阳性,用于鉴别诊断); 病理意义:心肌梗死灶周边Mb阴性区域提示细胞坏死,阳性区域为存活心肌。 WB验证(C2C12分化模型): 样本制备:C2C12成肌细胞诱导分化0/3/7天,RIPA裂解液(含1mM PMSF)冰上裂解30分钟; 电泳条件:15% SDS-PAGE凝胶,恒压80V浓缩胶、120V分离胶,转膜使用0.22μm PVDF膜(200mA恒流1小时); 抗体孵育:单克隆抗体1:2000稀释(5%脱脂奶粉+TBST),4℃孵育过夜,曝光时间30秒(17kDa处可见条带,分化7天灰度值是0天的5.2倍)。 公司正在出售的产品
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