NOVEL PYRRHOCORICIN-DERIVED PEPTIDES, AND METHODS OF USE THEREOF

摘要

Modifications of the peptide pyrrhocoricin permit the production of a variet y of anti-bacterial or anti-fungal peptides having general formula R1-Asp-Lys- Gly-X-Y-Leu-Pro-Arg-Pro-Thr-Pro-Pro-Arg-Pro-Ile-Tyr-X'-Y'-R2[SEQ ID NO:1] or multimeric compositions containing more than a single peptide of that formul a. These peptides may be straight chain or cyclic peptides, and may contain one or more non-cleavable bonds. These peptides are characterized by anti- bacterial or anti-fungal activity and metabolic stability in mammalian serum . These peptides are useful in anti-bacterial or anti-fungal pharmaceutical compositions and for further drug development or identification of other antibiotic or anti-fungal compounds.