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Article

Mechanism of Action of and Mechanism of Reduced Susceptibility to the Novel Anti-Clostridium difficile Compound LFF571

30 May 2012

Abstract excerpt

LFF571 is a novel semisynthetic thiopeptide and potent inhibitor of Gram-positive bacteria. We report that the antibacterial activity of LFF571 against Clostridium difficile is due to inhibition of translation. Single-step mutants of C. difficile with reduced susceptibility to LFF571 were selected at frequencies of <4.5 × 10(-11) to 1.2 × 10(-9). Sequencing revealed a G260E substitution in the thiopeptide-binding...

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PMID: 22644023
DOI: 10.1128/aac.06354-11

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