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膜金属肽链内切酶(MME)又称中性内肽酶(NEP)、分化簇10(CD10)和普通急性淋巴细胞白血病抗原(CALLA),是一种酶,由MME基因编码。 它在各种组织中都有表达,在肾脏中的表达量尤其丰富。它也是一种常见的急性淋巴细胞白血病抗原,是诊断急性淋巴细胞白血病(ALL)的重要细胞表面标志物。这种蛋白存在于前B型的白血病细胞上,而前B型的白血病细胞占了85%的病例。 本试剂盒采用双抗体夹心法酶联免疫吸附试验(ELISA)。往预先包被有人膜金属肽链内切酶(MME)捕获抗体的微孔中,依次加入样本、标准品、生物素标记的检测抗体,HRP酶结合物,中间经过温育和洗涤,用底物TMB显色,TMB在过氧化物酶(HRP)的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样本中的人膜金属肽链内切酶(MME)呈正相关。用酶标仪在450nm 波长下测定吸光度(OD值),计算样本浓度。
This kit employs the sandwich enzyme-linked immunosorbent assay (ELISA) principle. Microplate wells are pre-coated with a capture antibody specific to Human MME. Following this, the sample, standards, a biotin-conjugated detection antibody, and an HRP (horseradish peroxidase)-labeled conjugate are added sequentially to the wells. The procedure involves incubation and wash steps between each addition. For detection, TMB substrate is used. TMB yields a blue color in the presence of the peroxidase activity of HRP. The reaction is then stopped with an acid solution, which converts the blue color to a final yellow color. The intensity of the yellow color is directly proportional to the concentration of Human MME present in the sample. The optical density (OD) is measured at a wavelength of 450 nm using a microplate reader. Finally, the concentration of the target analyte in the sample is calculated based on the standard curve generated from the standards.