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OMN6 a novel bioengineered peptide for the treatment of multidrug resistant Gram negative bacteria

Sci Rep. 2021-03; 
Shira Mandel, Janna Michaeli, Noa Nur, Isabelle Erbetti, Jonathan Zazoun, Livia Ferrari, Antonio Felici, Moshe Cohen-Kutner, Niv Bachnoff
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摘要

New antimicrobial agents are urgently needed, especially to eliminate multidrug resistant Gram-negative bacteria that stand for most antibiotic-resistant threats. In the following study, we present superior properties of an engineered antimicrobial peptide, OMN6, a 40-amino acid cyclic peptide based on Cecropin A, that presents high efficacy against Gram-negative bacteria with a bactericidal mechanism of action. The target of OMN6 is assumed to be the bacterial membrane in contrast to small molecule-based agents which bind to a specific enzyme or bacterial site. Moreover, OMN6 mechanism of action is effective on Acinetobacter baumannii laboratory strains and clinical isolates, regardless of the bacteria genotyp... More

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