Title
Collective motions of rigid fragments in protein structures from smoothed electron density distributions.
Abstract
In this work, the Gaussian Network Model (GNM) and Anisotropic Network Model (ANM) approaches are applied to describe the dynamics of protein structure graphs built from calculated promolecular electron density (ED) distribution functions. A first set of analyses is carried out on results obtained from ED maxima calculated at various smoothing levels. A second set is achieved for ED networks whose edges are weighted by ED overlap integral values. Results are compared with those obtained through the classical GNM and ANM approaches applied to networks of C, atoms. It is shown how the network model and the consideration of crystal packing as well as of the side chains may lead to various improvements dependent upon the structure under study. The selected protein structures are Crambin and Pancreatic Trypsin Inhibitor because of their small size and numerous dynamical data obtained by other authors. (C) 2008 Wiley Periodicals, Inc.
Year
DOI
Venue
2008
10.1002/jcc.20908
JOURNAL OF COMPUTATIONAL CHEMISTRY
Keywords
Field
DocType
promolecular electron density distribution,protein dynamics,elastic network,crambin,pancreatic trypsin inhibitor
Orbital overlap,Computational chemistry,Chemistry,Anisotropic Network Model,Smoothing,Gaussian network model,Crambin,Maxima,Distribution function,Network model
Journal
Volume
Issue
ISSN
29
9
0192-8651
Citations 
PageRank 
References 
1
0.36
9
Authors
2
Name
Order
Citations
PageRank
Laurence Leherte1206.75
Daniel P Vercauteren2156.86