Structural highlights
Function
[MAGA_XENLA] Antimicrobial peptides that inhibit the growth of numerous species of bacteria and fungi and induce osmotic lysis of protozoa. Magainins are membrane lytic agents.
Publication Abstract from PubMed
High-resolution structure elucidation has been challenging for the large group of host-defense peptides that form helices on or within membranes but do not manifest a strong folding propensity in aqueous solution. Here we report the crystal structure of an analogue of the widely studied host-defense peptide magainin 2. Magainin 2 (S8A, G13A, G18A) is a designed variant that displays enhanced antibacterial activity relative to the natural peptide. The crystal structure of magainin 2 (S8A, G13A, G18A), obtained for the racemic form, features a dimerization mode that has previously been proposed to play a role in the antibacterial activity of magainin 2 and related peptides.
Evidence for Phenylalanine Zipper-Mediated Dimerization in the X-ray Crystal Structure of a Magainin 2 Analogue.,Hayouka Z, Mortenson DE, Kreitler DF, Weisblum B, Forest KT, Gellman SH J Am Chem Soc. 2013 Oct 8. PMID:24102563[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Hayouka Z, Mortenson DE, Kreitler DF, Weisblum B, Forest KT, Gellman SH. Evidence for Phenylalanine Zipper-Mediated Dimerization in the X-ray Crystal Structure of a Magainin 2 Analogue. J Am Chem Soc. 2013 Oct 8. PMID:24102563 doi:http://dx.doi.org/10.1021/ja409082w
