Eur Biophys J 2000 Jan 01;288:683-8. doi: 10.1007/s002490050008.

Grazing incidence X-ray diffraction of highly aligned phospholipid membranes containing the antimicrobial peptide magainin 2.

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We present the first study of grazing incidence X-ray diffraction on a model system of phospholipid membranes and antimicrobial peptides. For this purpose, highly oriented multilamellar samples have been prepared on solid substrates. By this technique, the short-range order of the lipid chains in the fluid L(alpha) phase can be investigated quantitatively, including not only the mean distance between acyl chains, but also the associated correlation length. The short-range order in lecithin is found to be severely affected by the amphiphilic peptide magainin 2.

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Species referenced: Xenopus
Genes referenced: magainins