The Board of Trustees of the University of Illinois
发明人:
Jianjun CHENG,Menghua XIONG,Ziyuan SONG
申请号：
US15739090
公开号：
US20180179336A1
申请日:
2016.06.27
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The invention provides antimicrobial polypeptides (AMPs) with high radial amphiphilicity. Unlike typical AMPs characterized by facial amphiphilicity or biomimetic antimicrobial polymers with randomly distributed charged and hydrophobic groups, these new AMPs are homo-polypeptides with radially amphiphilic structure. They adopt a stable α-helical conformation with a hydrophobic helical core and a charged exterior shell, formed by flexible hydrophobic side chains with terminal charge group. The radially amphiphilic polypeptides offer several advantages over conventional AMPs with regard to stability against protease and simplicity of design. They also exhibit high antibacterial activity against both Gram-negative and Gram-positive bacteria and low hemolytic activity. The AMPs thus provide a general platform for treating drug-resistant bacterial infections.
