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Trends Microbiol. 2008 May;16(5):222-9. doi: 10.1016/j.tim.2008.01.011. Epub 2008 Apr 18.

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

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  • 1Institut für Experimentelle und Klinische Pharmakologie und Toxikologie der Albert-Ludwigs-Universität Freiburg, Otto-Krayer-Haus, Albertstrasse 25, D-79104 Freiburg, Germany.

Abstract

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.

PMID:
18394902
DOI:
10.1016/j.tim.2008.01.011
[PubMed - indexed for MEDLINE]
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