Site-selective incorporation of alpha- and beta-amino acid derivatives : towards new gramicidin S-based bactericides

Abstract

The effect of the incorporation of alpha- and beta-amino acids in model peptide gramicidin S is described. Several techniques were applied, such as NMR and X-ray crystallography. In addition the activity of the newly obtained peptides towards bacterial and mammalian cell membranes was investigated.

Cyclic peptidesUnnatrual amino acidsBeta-amino acidsOrganic synthesisPeptide engineeringNMRGramicidin S