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Title: STOCK: Structure mapper and online coarse-graining kit for molecular simulations

Journal Article · · Journal of Computational Chemistry
DOI:https://doi.org/10.1002/jcc.23806· OSTI ID:1193291
 [1];  [2];  [1]
  1. National Institute of Chemistry, Ljubljana (Slovenia)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

We present a web toolkit STructure mapper and Online Coarse-graining Kit for setting up coarse-grained molecular simulations. The kit consists of two tools: structure mapping and Boltzmann inversion tools. The aim of the first tool is to define a molecular mapping from high, e.g. all-atom, to low, i.e. coarse-grained, resolution. Using a graphical user interface it generates input files, which are compatible with standard coarse-graining packages, e.g. VOTCA and DL_CGMAP. Our second tool generates effective potentials for coarse-grained simulations preserving the structural properties, e.g. radial distribution functions, of the underlying higher resolution model. The required distribution functions can be provided by any simulation package. Simulations are performed on a local machine and only the distributions are uploaded to the server. The applicability of the toolkit is validated by mapping atomistic pentane and polyalanine molecules to a coarse-grained representation. Effective potentials are derived for systems of TIP3P (transferable intermolecular potential 3 point) water molecules and salt solution. The presented coarse-graining web toolkit is available at http://stock.cmm.ki.si.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
PHY11-25915; J1-4134; P1-0002; AC52-06NA25396
OSTI ID:
1193291
Report Number(s):
LA-UR-14-21684; TRN: US1600425
Journal Information:
Journal of Computational Chemistry, Vol. 36, Issue 7; ISSN 0192-8651
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Adaptive resolution simulations of biomolecular systems journal September 2017
Open boundary molecular dynamics of sheared star-polymer melts journal January 2016
Adaptive resolution simulations coupling atomistic water to dissipative particle dynamics journal September 2017
Open boundary molecular dynamics journal June 2015
Molecular Dynamics Simulation of High Density DNA Arrays journal January 2018
Relative Entropy and Optimization-Driven Coarse-Graining Methods in VOTCA journal July 2015