木筏
苯乙烯
马来酸
化学
脂筏
高分子化学
共聚物
化学工程
有机化学
生物化学
膜
聚合物
工程类
作者
Anders Smith,Henriette Elisabeth Autzen,Tomas Laursen,Vincent C. Wu,Max Yen,Aaron Hall,Scott D. Hansen,Yifan Cheng,Ting Xu
出处
期刊:Biomacromolecules
[American Chemical Society]
日期:2017-10-09
卷期号:18 (11): 3706-3713
被引量:45
标识
DOI:10.1021/acs.biomac.7b01136
摘要
The ability of styrene maleic acid copolymers to dissolve lipid membranes into nanosized lipid particles is a facile method of obtaining membrane proteins in solubilized lipid discs while conserving part of their native lipid environment. While the currently used copolymers can readily extract membrane proteins in native nanodiscs, their highly disperse composition is likely to influence the dispersity of the discs as well as the extraction efficiency. In this study, reversible addition-fragmentation chain transfer was used to control the polymer architecture and dispersity of molecular weights with a high-precision. Based on Monte Carlo simulations of the polymerizations, the monomer composition was predicted and allowed a structure-function analysis of the polymer architecture, in relation to their ability to assemble into lipid nanoparticles. We show that a higher degree of control of the polymer architecture generates more homogeneous samples. We hypothesize that low dispersity copolymers, with control of polymer architecture are an ideal framework for the rational design of polymers for customized isolation and characterization of integral membrane proteins in native lipid bilayer systems.
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