Understanding conformational entropy in small molecules

L Chan, GM Morris, GR Hutchison - Journal of Chemical Theory …, 2021 - ACS Publications
The calculation of the entropy of flexible molecules can be challenging, since the number of
possible conformers can grow exponentially with molecule size and many low-energy …

Entropy calculations of single molecules by combining the rigid–rotor and harmonic-oscillator approximations with conformational entropy estimations from molecular …

E Suarez, N Diaz, D Suarez - Journal of chemical theory and …, 2011 - ACS Publications
As shown by previous theoretical and computational work, absolute entropies of small
molecules that populate different conformers can be predicted accurately on the basis of the …

Towards understanding solvation effects on the conformational entropy of non-rigid molecules

J Gorges, S Grimme, A Hansen, P Pracht - … Chemistry Chemical Physics, 2022 - pubs.rsc.org
The absolute molecular entropy is a fundamental quantity for the accurate description of
thermodynamic properties. For non-rigid molecules, a substantial part of the entropy can be …

The dynameomics entropy dictionary: a large-scale assessment of conformational entropy across protein fold space

CL Towse, M Akke, V Daggett - The Journal of Physical Chemistry …, 2017 - ACS Publications
Molecular dynamics (MD) simulations contain considerable information with regard to the
motions and fluctuations of a protein, the magnitude of which can be used to estimate …

Direct methods for computing single‐molecule entropies from molecular simulations

D Suárez, N Díaz - Wiley Interdisciplinary Reviews …, 2015 - Wiley Online Library
Assessing the actual role of entropic forces in controlling both the stability and activity of
flexible molecules and macromolecules is a theoretical challenge that is gradually gaining …

Evaluation of Configurational Entropy Methods from Peptide Folding− Unfolding Simulation

DW Li, M Khanlarzadeh, J Wang, S Huo… - The Journal of …, 2007 - ACS Publications
A 4-μs molecular dynamics simulation of the second β-hairpin of the B1 domain of
streptococcal protein G is used to characterize the free energy surface and to evaluate …

Calculation of absolute molecular entropies and heat capacities made simple

P Pracht, S Grimme - Chemical science, 2021 - pubs.rsc.org
We propose a fully-automated composite scheme for the accurate and numerically stable
calculation of molecular entropies by efficiently combining density-functional theory (DFT) …

Conformational entropies and order parameters: convergence, reproducibility, and transferability

S Genheden, M Akke, U Ryde - Journal of Chemical Theory and …, 2014 - ACS Publications
Conformational entropy provides major contributions to protein folding and functions, such
as ligand binding, making it a potentially important driver of biologically relevant processes …

Torsional anharmonicity in the conformational thermodynamics of flexible molecules

TF Miller III*, DC Clary - Molecular Physics, 2005 - Taylor & Francis
We present an algorithm for calculating the conformational thermodynamics of large, flexible
molecules that combines ab initio electronic structure theory calculations with a torsional …

CENCALC: A computational tool for conformational entropy calculations from molecular simulations

E Suárez, N Díaz, J Méndez, D Suárez - 2013 - Wiley Online Library
We present the CENCALC software that has been designed to estimate the conformational
entropy of single molecules from extended Molecular Dynamics (MD) simulations in the gas …