Drying-induced hydrophobic polymer collapse

被引：252

作者：

ten Wolde, PR ^{[1
]}

Chandler, D ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2002年 / 99卷 / 10期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1073/pnas.052153299

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We have used computer simulation to study the collapse of a hydrophobic chain in water. We find that the mechanism of collapse is much like that of a first-order phase transition. The evaporation of water in the vicinity of the polymer provides the driving force for collapse, and the rate limiting step is the nucleation of a sufficiently large vapor bubble. The study is made possible through the application of transition path sampling and a coarse-grained treatment of liquid water. Relevance of our findings to understanding the folding and assembly of proteins is discussed.

引用

页码：6539 / 6543

页数：5

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