| Literature DB >> 27216066 |
Tala O Khatib1, Heather Stevenson1, Michael R Yeaman2, Arnold S Bayer3, Antje Pokorny4.
Abstract
The cytoplasmic membrane of Staphylococcus aureus contains ∼20 mol% of the net cationic lipid lysyl-phosphatidylglycerol (LPG). Elevated fractions of LPG are associated with increased resistance to cationic antibiotics, including the lipopeptide daptomycin (DAP). Although the surface charge of the bacterial cytoplasmic membrane is altered by LPG, surface binding of DAP was found to be only moderately affected in anionic vesicles containing 20 mol% LPG. These results suggest that charge repulsion cannot fully explain LPG-mediated resistance to cationic peptides.Entities:
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Year: 2016 PMID: 27216066 PMCID: PMC4958220 DOI: 10.1128/AAC.00744-16
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191