Effects of pH-induced variations of the charge of the transmembrane alpha-helical peptide Ac-K2(LA)12K2-amide on the organization and dynamics of the host dimyristoylphosphatidylcholine bilayer membrane.

Abstract

The effects of the transmembrane alpha-helical peptide Ac-K(2)(LA)(12)K(2)-amide ((LA)(12)) on the phase transition and dynamics of saturated dimyristoylphosphatidylcholine (DMPC) membranes were investigated at different pH using conventional and saturation-recovery EPR observations of phosphatidylcholine spin labels. At a peptide-to-DMPC ratio of 1/10, the… (More)

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