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The cortex and peptidoglycan of Clostridioides difficile have been poorly investigated. This last decade, the interest increased because these two structures are highly modified and these modifications may be involved in antimicrobial resistance. For example, C. difficile peptidoglycan deacetylation was recently reported to be involved in lysozyme resistance. Modifications may also be important for spore cortex synthesis or spore germination, which is essential in C. difficile pathogenesis. As such, the enzymes responsible for modifications of the peptidoglycan and/or cortex could be new drug target candidates or used as anti-C. difficile agents, as seen for the CD11 autolysin. In this review, we focus on C. difficile peptidoglycan and cortex and compare their structures with those of other well studied bacteria. Copyright © 2021 Elsevier Ltd. All rights reserved.


Héloise Coullon, Thomas Candela. Clostridioides difficile peptidoglycan modifications. Current opinion in microbiology. 2022 Feb;65:156-161

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PMID: 34883390

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