Describing the mechanism of antimicrobial peptide action with the interfacial activity model.

Describing the mechanism of antimicrobial peptide action with the interfacial activity model.
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DOI:
10.1021/cb1001558
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发表时间:
2010-10-15
影响因子:
4
通讯作者:
Wimley, William C.
Wimley, William C.
中科院分区:
生物学2区
文献类型:
--
作者:
Wimley, William C.

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抗菌肽(AMP)的研究已经有三十年了,但对其作用机制的分子了解仍然缺乏。在这里,我们总结了合成囊泡实验和微生物实验的当前知识,重点是两者之间的比较。微生物实验的肽:脂质比例比基于囊泡的实验高至少 4 个数量级。为了缩小两种浓度范围之间的差距,我们提出了一种“界面活性模型”,该模型基于可通过实验测试的 AMP-膜相互作用的分子图像。界面活性模型可能有助于驱动新型 AMP 的工程和设计。
Antimicrobial peptides (AMPs) have been studied for three decades, and yet a molecular understanding of their mechanism of action is still lacking. Here we summarize current knowledge for both synthetic vesicle experiments and microbe experiments, with a focus on comparisons between the two. Microbial experiments are done at peptide:lipid ratios that are at least 4 orders of magnitude higher than vesicle-based experiments. To close the gap between the two concentration regimes, we propose an “interfacial activity model”, which is based on an experimentally testable molecular image of AMP-membrane interactions. The interfacial activity model may be useful in driving engineering and design of novel AMPs.
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