5V1E

Suboptimization of a glycine rich peptide allows the combinatorial space exploration for designing novel antimicrobial peptides

5V1E の概要

• エントリーDOI: 10.2210/pdb5v1e/pdb
• NMR情報: BMRB: 30263
• 分子名称: Guavanin 2 (1 entity in total)
• 機能のキーワード: antibacterial, helix., antimicrobial protein
• 由来する生物種: synthetic construct
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 2648.08

構造登録者

Alves, E.S.F.,Matos, C.O. (登録日: 2017-03-02, 公開日: 2018-03-07, 最終更新日: 2024-10-09)

主引用文献

Porto, W.F.,Irazazabal, L.,Alves, E.S.F.,Ribeiro, S.M.,Matos, C.O.,Pires, A.S.,Fensterseifer, I.C.M.,Miranda, V.J.,Haney, E.F.,Humblot, V.,Torres, M.D.T.,Hancock, R.E.W.,Liao, L.M.,Ladram, A.,Lu, T.K.,de la Fuente-Nunez, C.,Franco, O.L.
In silico optimization of a guava antimicrobial peptide enables combinatorial exploration for peptide design.
Nat Commun, 9:1490-1490, 2018

PubMed Abstract: Plants are extensively used in traditional medicine, and several plant antimicrobial peptides have been described as potential alternatives to conventional antibiotics. However, after more than four decades of research no plant antimicrobial peptide is currently used for treating bacterial infections, due to their length, post-translational modifications or  high dose requirement for a therapeutic effect . Here we report the design of antimicrobial peptides derived from a guava glycine-rich peptide using a genetic algorithm. This approach yields guavanin peptides, arginine-rich α-helical peptides that possess an unusual hydrophobic counterpart mainly composed of tyrosine residues. Guavanin 2 is characterized as a prototype peptide in terms of structure and activity. Nuclear magnetic resonance analysis indicates that the peptide adopts an α-helical structure in hydrophobic environments. Guavanin 2 is bactericidal at low concentrations, causing membrane disruption and triggering hyperpolarization. This computational approach for the exploration of natural products could be used to design effective peptide antibiotics.

PubMed: 29662055
DOI: 10.1038/s41467-018-03746-3

実験手法

SOLUTION NMR