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ABSTRACT Multidrug-resistant Pseudomonas aeruginosa is a major cause of severe hospital-acquired infections. Currently, polymyxin… Expand We have investigated the effect of the presence of 25 mol percent cholesterol on the interactions of the antimicrobial peptide… Expand Gramicidin S (GS) is a cyclic decapeptide of primary structure [cyclo-(Val-Orn-Leu-D-Phe-Pro)(2)] secreted by Bacillus brevis. It… Expand We have studied the effects of the antimicrobial peptide gramicidin S (GS) on the thermotropic phase behavior of large… Expand We have investigated the role of amphipathicity in a homologous series of head-to-tail cyclic antimicrobial peptides in efforts… Expand Four linear and four cyclic analogs of gramicidin S (GS) in which D-Phe was replaced with either D-His, D-Ser, D-Tyr or D-Asn… Expand The action of gramicidin S and melittin on human erythrocytes, Staphylococcus aureus and Escherichia coli was studied as an… Expand The action of a cationic antibiotic gramicidin S on the outer and cytoplasmic membranes of Escherichia coli was studied. It was… Expand We have measured the lateral diffusion coefficient (D), of active dansyl-labeled gramicidin C (DGC), using the technique of… Expand Currently there is great interest in the precise conformation of complicated natural products in solution. Nuclear magnetic… Expand