Peptide Interaction with and Insertion into Membranes
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706
Natural and synthetic membrane active peptides as well as fragments from membrane proteins interact with membranes. In several cases, such interactions cause the insertion of the peptides to the membrane and their assembly within the lipid bilayer. Here we present spectroscopic approaches utilizing NBD and rhodamine fluorescently labeled peptides to measure peptide–membrane interaction and peptide–peptide interaction within the membrane. The usage of the physical properties of NBD and rhodamine in solution and in membranes provides useful information on the interplay between peptides and lipids.
