Title
Binding energy calculations for hevein–carbohydrate interactions using expanded ensemble molecular dynamics simulations
Abstract
Accurate estimation of protein–carbohydrate binding energies using computational methods is a challenging task. Here we report the use of expanded ensemble molecular dynamics (EEMD) simulation with double decoupling for estimation of binding energies of hevein, a plant lectin with its monosaccharide and disaccharide ligands GlcNAc and (GlcNAc), respectively. In addition to the binding energies, enthalpy and entropy components of the binding energy are also calculated. The estimated binding energies for the hevein–carbohydrate interactions are within the range of ±0.5 kcal of the previously reported experimental binding data. For comparison, binding energies were also estimated using thermodynamic integration, molecular dynamics end point calculations (MM/GBSA) and the expanded ensemble methodology is seen to be more accurate. To our knowledge, the method of EEMD simulations has not been previously reported for estimating biomolecular binding energies.
Year
DOI
Venue
2015
https://doi.org/10.1007/s10822-014-9792-5
Journal of Computer-Aided Molecular Design
Keywords
Field
DocType
Binding energies,Expanded ensemble molecular dynamics,Carbohydrates,Docking
Disaccharide,Binding energy,Ligand,Computational chemistry,Chemistry,End point,Molecular dynamics,Carbohydrate,Thermodynamic integration,Enthalpy
Journal
Volume
Issue
ISSN
29
1
0920-654X
Citations 
PageRank 
References 
0
0.34
5
Authors
4
Name
Order
Citations
PageRank
Chaitanya A. K. Koppisetty121.41
Martin Frank25211.65
Alexander Lyubartsev382.38
Per-Georg Nyholm441.84