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Updated: Jun 23, 2026

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy
Published on: March 5, 2017
Interactions of two transmembrane peptides in supported lipid bilayers studied by a (31)P and (15)N MAOSS NMR
Achraf Kouzayha1, Olivier Wattraint, Catherine Sarazin
1UMR du CNRS, Université de Picardie Jules Verne, Amiens, France.
Abstract:
(31)P and (15)N solid-state NMR with the magic angle-oriented sample spinning (MAOSS) strategy was used to investigate the effect of two model peptides on phospholipid bilayers mimicking biological membrane. One of the peptides, alamethicin, used as a reference of transmembrane alignment, has been shown to disrupt the lipid bilayer organisation, affecting the DMPC packaging. On the other hand, a alpha-helix alanine-rich peptide, K(3)A(18)K(3), with a (15)N labelled alanine, did not present any effect in the DMPC bilayer organisation. The mean orientation of this peptide in the bilayer gave a transmembrane alignment of about 80%.
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