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Structure and mode of action of clostridial glucosylating toxins: the ABCD model.

机译:梭菌糖基化毒素的结构和作用方式:ABCD模型。

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摘要

Toxins A and B, which are the major virulence factors of antibiotic-associated diarrhea and pseudomembranous colitis caused by Clostridium difficile, are the prototypes of the family of clostridial glucosylating toxins. The toxins inactivate Rho and Ras proteins by glucosylation. Recent findings on the autocatalytic processing of the toxins and analysis of the crystal structures of their domains have made a revision of the current model of their actions on the eukaryotic target cells necessary.
机译:毒素A和B是艰难梭菌引起的与抗生素相关的腹泻和假膜性结肠炎的主要毒力因子,是梭菌糖基化毒素家族的原型。毒素通过糖基化使Rho和Ras蛋白失活。毒素的自催化处理及其结构域晶体结构的最新发现使对它们对真核靶细胞作用的当前模型进行了修订。

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