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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。
Toll样受体4是一种蛋白质,也被指定为CD284(分化簇284),它的分子量约为95 kDa。TLR4是一种跨膜蛋白,是Toll样受体家族的成员,属于模式识别受体(PRR)家族。它的激活导致细胞内信号通路NF-κB和炎性细胞因子的产生,负责激活先天性免疫系统。表达TRL4的细胞是骨髓细胞(红细胞、粒细胞、巨噬细胞),而不是淋巴细胞(T细胞、B细胞、NK细胞)。大多数骨髓细胞也表达高水平的CD14,这有利于TLR4被LPS激活。它最著名的是识别脂多糖(LPS),一种存在于许多革兰氏阴性细菌(如奈瑟氏菌)和特定革兰氏阳性细菌中的成分。其配体还包括几种病毒蛋白、多糖和各种内源性蛋白。 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Toll样受体4(TLR4)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Toll样受体4(TLR4)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 TLR4. 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 TLR4 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.