MULTIDIMENSIONAL FREE-ENERGY CALCULATIONS USING THE WEIGHTED HISTOGRAM ANALYSIS METHOD

被引：712

作者：

KUMAR, S

ROSENBERG, JM

BOUZIDA, D

SWENDSEN, RH

KOLLMAN, PA

机构：

[1] UNIV PITTSBURGH, DEPT BIOL SCI, PITTSBURGH, PA 15260 USA

[2] UNIV PITTSBURGH, WM KECK CTR ADV TRAINING COMPUTAT BIOL, PITTSBURGH, PA 15260 USA

[3] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15260 USA

[4] PITTSBURGH SUPERCOMP CTR, PITTSBURGH, PA 15260 USA

来源：

JOURNAL OF COMPUTATIONAL CHEMISTRY | 1995年 / 16卷 / 11期

关键词：

D O I：

10.1002/jcc.540161104

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The recently formulated weighted histogram analysis method (WHAM)(1) is an extension of Ferrenberg and Swendsen's multiple histogram technique for free-energy and potential of mean force calculations. As an illustration of the method, we have calculated the two-dimensional potential of mean force surface of the dihedrals gamma and chi in deoxyadenosine with Monte Carlo simulations using the all-atom and united-atom representation of the AMBER force fields. This also demonstrates one of the major advantages of WHAM over umbrella sampling techniques. The method also provides an analysis of the statistical accuracy of the potential of mean force as well as a guide to the most efficient use of additional simulations to minimize errors. (C) 1995 by John Wiley & Sons, Inc.

引用

页码：1339 / 1350

页数：12