| Literature DB >> 2671997 |
H V Westerhoff1, D Juretić, R W Hendler, M Zasloff.
Abstract
Magainins, a family of positively charged peptides, are partly if not wholly responsible for antimicrobial activity in skin extracts of Xenopus laevis. We report here that members of the magainin family--i.e., the 21-amino acid peptide PGLa and the 23-amino acid peptide magainin 2 amide (PGSa)--dissipate the electric potential across various energy-transducing membranes and thus uncouple respiration from other free-energy-requiring processes. We propose that this is a likely mechanism for the antimicrobial effects of these compounds.Entities:
Mesh:
Substances:
Year: 1989 PMID: 2671997 PMCID: PMC297891 DOI: 10.1073/pnas.86.17.6597
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205