Title
MOPED: method for optimizing physical energy parameters using decoys.
Abstract
We present a method called MOPED for optimizing energetic and structural parameters in computational models, including all-atom energy functions, when native structures and decoys are given. The present method goes beyond previous approaches in treating energy functions that are nonlinear in the parameters and continuous in the degrees of freedom. We illustrate the method by improving solvation parameters in the energy function EEF1, which consists of the CHARMM19 polar hydrogen force field augmented by a Gaussian solvation term. Although the published parameters for EEF1 correctly discriminate the native from decoys in the decoy sets of Levitt et al., they fail on several of the more difficult decoy sets of Baker et al. MOPED successfully finds improved parameters that allow EEF1 to discriminate native from decoy structures on all protein structures that do not have metals or prosthetic groups. (C) 2002 Wiley Periodicals, Inc.
Year
DOI
Venue
2003
10.1002/jcc.10124
JOURNAL OF COMPUTATIONAL CHEMISTRY
Keywords
Field
DocType
MOPED,computational models,EEF1
Force field (physics),Force field (chemistry),Nonlinear system,Decoy,Computational chemistry,Chemistry,Computational model,Gaussian,Solvation
Journal
Volume
Issue
ISSN
24.0
1
0192-8651
Citations 
PageRank 
References 
2
0.54
1
Authors
4
Name
Order
Citations
PageRank
Chaok Seok116315.89
J. Ben Rosen231572.96
John D Chodera3467.89
Ken A Dill418123.13