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Immunoreactivity of specific epitopes of PrPSc is enhanced by pretreatment in a hydrated autoclave.

机译:通过在水合高压釜中进行预处理可以增强PrPSc特定表位的免疫反应性。

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摘要

An abnormal protein (PrPSc) accumulates in animals affected with scrapie. Immunoblotting procedures have been used widely to detect PrPSc. Blotted membranes were subjected to pretreatment in a hydrated autoclave, and the subsequent immunoreactivity of PrPSc was examined. The immunoreactivity of PrPSc to antisera against the synthetic peptides of the mouse PrP amino acid sequences 199 to 208 and 213 to 226 was enhanced by the pretreatment. However, the reactivity to antisera of peptide sequences 100 to 115 and 165 to 174 was not affected. The antibody-binding ability of the specific epitopes which are located close to the C-terminal end of PrP27-30 the proteinase-resistant portion of PrPSc, was enhanced by pretreatment in a hydrated autoclave. This pretreatment increased the sensitivity of PrPSc, and it would be useful for diagnosis of scrapie.
机译:异常蛋白(PrPSc)会在患有瘙痒病的动物体内积聚。免疫印迹程序已被广泛用于检测PrPSc。印迹的膜在水合高压釜中进行预处理,并检查随后的PrPSc免疫反应性。通过预处理增强了PrPSc针对抗血清的抗小鼠PrP氨基酸序列199至208和213至226的合成肽的免疫反应性。然而,肽序列100至115和165至174的抗血清的反应性不受影响。通过在水合高压釜中进行预处理,增强了靠近PrP27-30的C末端(即PrPSc的蛋白酶抗性部分)的C-末端的特定表位的抗体结合能力。这种预处理增加了PrPSc的敏感性,对诊断瘙痒病很有用。

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