首页> 外文期刊>Infection and immunity >Evidence that a region(s) of the Clostridium perfringens enterotoxin molecule remains exposed on the external surface of the mammalian plasma membrane when the toxin is sequestered in small or large complexes.
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Evidence that a region(s) of the Clostridium perfringens enterotoxin molecule remains exposed on the external surface of the mammalian plasma membrane when the toxin is sequestered in small or large complexes.

机译:当毒素被螯合在小或大复合物中时,产气荚膜梭菌肠毒素分子的一个或多个区域仍暴露在哺乳动物质膜的外表面上的证据。

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摘要

In studies performed to investigate the topology of Clostridium perfringens enterotoxin (CPE) when this toxin is associated with intestinal brush border membrane (BBMs), it was shown that radiolabeled CPE antibodies react more strongly against intact CPE-treated BBMs than against control BBMs. Immunoprecipitation studies then demonstrated that CPE antibodies are able to react with both small and large CPE-containing complexes while these complexes are still present in intact BBMs. Therefore, at least a portion of the CPE molecule appears to remain surface exposed in BBMs throughout the action of this toxin.
机译:在研究这种产气荚膜梭菌肠毒素(CPE)的拓扑结构时,该毒素与肠刷缘膜(BBMs)相关联,研究表明,放射性标记的CPE抗体对完整的CPE处理的BBM的反应比对对照的BBM的反应更强烈。免疫沉淀研究表明,CPE抗体能够与大大小小的含CPE的复合物反应,而这些复合物仍存在于完整的BBM中。因此,在该毒素的整个作用过程中,CPE分子的至少一部分似乎保持暴露在BBM中。

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