Enzyme Immunoassay of Thyrotropin Releasing Hormone(TRH).
作者:Masaharu TAKEYAMA、Akira OTAKA、Nobutaka FUJII
DOI:10.1248/cpb.40.2199
日期:——
immunoassay (EIA) for a thyrotropin releasing hormone (TRH)-like immunoreactive substance has been developed. In order to synthesize TRH-labeled beta-D-galactosidase (beta-gal), a newly devised TRH derivative, pGlu-His-Pro-NH-(CH2)6-NH2 (TRH-Hex), was employed. TRH-Hex was linked to beta-gal by the N-(epsilon-maleimidocaproyloxy) succinimide coupling procedure. For competitive reactions, the TRH antibody was
对于促甲状腺激素释放激素(TRH)样免疫反应性物质,已开发出灵敏且特异的双抗体酶免疫测定法(EIA)。为了合成TRH标记的β-D-半乳糖苷酶(β-gal),使用了新设计的TRH衍生物,pGlu-His-Pro-NH-(CH 2)6 -NH 2(TRH-Hex)。TRH-Hex通过N-(ε-马来酰亚胺基己酰氧基)琥珀酰亚胺偶联方法与β-gal连接。对于竞争性反应,将TRH抗体与标准TRH和TRH-Hex-beta-gal(延迟添加)一起孵育。通过使用抗兔免疫球蛋白G包被的免疫板分离游离的和抗体结合的半抗原。通过荧光测定酶在板上的活性。本免疫测定法允许检测0.8至100pmol /孔的TRH。