计算溶液所需的质量、体积或浓度。
BioReagent 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
尿激酶,又称尿激酶型纤溶酶原激活物(uPA),是一种丝氨酸蛋白酶,由PLAU基因编码。尿激酶最初是从尿液中分离出来的,它也存在于血液和许多组织的细胞外基质中。这种酶的主要生理底物是浆蛋白原,它是丝氨酸蛋白酶浆蛋白的非活性形式(酶原)。尿激酶是一个411个残基的蛋白质,由三个结构域组成:丝氨酸蛋白酶结构域、环状结构域和EGF样结构域。尿激酶以酶原形式合成(prourokinase或单链尿激酶),并通过Lys158和Ile159之间的蛋白水解激活。产生的两条链通过二硫键保持在一起。 本试剂盒采用双抗体夹心法酶联免疫吸附试验(ELISA)。往预先包被有猴尿激酶型纤溶酶原启动因子(uPA)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猴尿激酶型纤溶酶原启动因子(uPA)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 Monkey uPA. 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 Monkey uPA 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.