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色氨酸羟化酶1(TPH1),也被称为色氨酸羟化酶或色氨酸 5-羟化酶 1,是由TPH1基因编码的酶。它于1988年首次被发现合成血清素,并且直到2003年被认为只有一个TPH 基因,而在小鼠 、人和人脑中发现了第二种形式,然后将原来的TPH重新命名到 TPH1。它催化色氨酸的生物蝶呤依赖性单氧化为5-羟基色氨酸(5-HTP),随后脱羧形成神经递质血清素(5-羟色胺或5-HT)。它是血清素生物合成中的限速酶。TPH表达仅限于少数特殊组织:raphe神经元,松果体细胞,肥大细胞,单核白细胞,朗格汉斯胰岛的β细胞以及肠道和胰腺肠嗜铬细胞。 本试剂盒采用双抗体夹心法酶联免疫吸附试验(ELISA)。往预先包被有人色氨酸羟化酶1(TPH1)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色氨酸羟化酶1(TPH1)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 TPH1. 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 TPH1 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.