作者:Sushil N. Benke、Hirekodathakallu V. Thulasiram、Hosahudya N. Gopi
DOI:10.1002/cmdc.201700370
日期:2017.10.9
Herein we report the potent antimicrobial activity of α,γ‐hybrid lipopeptides composed of 1:1 alternating α‐ and γ‐amino acids. Along with their potent antimicrobial activity against various Gram‐positive and Gram‐negative bacteria, these hybrid lipopeptides were found to be less hemolytic. Studies into the mechanism of action revealed that these short cationic lipopeptides bind and disrupt the bacterial
本文中,我们报告了由1:1交替的α-和γ-氨基酸组成的α,γ-混合脂肽的有效抗菌活性。这些杂合脂肽除了具有针对各种革兰氏阳性和革兰氏阴性细菌的强效抗菌活性外,还具有较小的溶血作用。对作用机理的研究表明,这些短阳离子脂肽结合并破坏细菌细胞膜。时间杀灭动力学分析表明,有效的α,γ-混合脂肽可在不到20分钟的时间内完全抑制细菌生长。总体而言,这些α,γ-混合脂肽显示出令人鼓舞的抗菌活性以及较低的溶血活性,使其非常适合进一步探索有效的脂肽抗生素的设计。