Discovery of novel histidine-derived lipo-amino acids: Applied in the synthesis of ultra-short antimicrobial peptidomimetics having potent antimicrobial activity, salt resistance and protease stability
作者:Mija Ahn、Ravichandran N. Murugan、Binu Jacob、Jae-Kyung Hyun、Chaejoon Cheong、Eunha Hwang、Hyo-Nam Park、Ji-Hyung Seo、G. Srinivasrao、Kyung S. Lee、Song Yub Shin、Jeong Kyu Bang
DOI:10.1016/j.ejmech.2013.07.008
日期:2013.10
Here we report for the first time the synthesis of Histidine (His) derived lipo-amino acids having pendant lipid tails at N(τ)- and N(π)-positions on imidazole group of His and applied it into synthesis of lipo-peptides. The attachment of His-derived lipo-amino acid into the very short inactive cationic peptides endows potent antimicrobial activity against Gram-positive and Gram-negative bacteria without
在这里,我们首次报告了在N(τ)-和N处具有侧链脂质尾巴的组氨酸(His)衍生的脂氨基酸的合成His的咪唑基上的(π)-位置,并将其应用于脂肽的合成。将His衍生的脂氨基酸连接到非常短的无活性阳离子肽中,可赋予革兰氏阳性和革兰氏阴性细菌有效的抗菌活性,而无溶血活性。此外,我们设计的由两个或三个残基组成的His衍生的脂肽模拟物(HDLP)在高盐浓度下显示出强大的抗MRSA活性和蛋白酶稳定性,并保留了强大的抗菌活性。我们的结果表明,新型脂氨基酸具有很高的柔性,可以合成和执行脂-抗菌肽模拟物上广泛的结构-活性关系(SAR),并且代表一个独特的可修饰平台,用于修饰对抗菌活性重要的参数。通过这项研究,