Semiempirical quantum mechanical methods for noncovalent interactions for chemical and biochemical applications

AS Christensen, T Kubar, Q Cui, M Elstner - Chemical reviews, 2016 - ACS Publications
Semiempirical (SE) methods can be derived from either Hartree–Fock or density functional
theory by applying systematic approximations, leading to efficient computational schemes …

Biophysical experiments and biomolecular simulations: A perfect match?

S Bottaro, K Lindorff-Larsen - Science, 2018 - science.org
A fundamental challenge in biological research is achieving an atomic-level description and
mechanistic understanding of the function of biomolecules. Techniques for biomolecular …

ff19SB: amino-acid-specific protein backbone parameters trained against quantum mechanics energy surfaces in solution

C Tian, K Kasavajhala, KAA Belfon… - Journal of chemical …, 2019 - ACS Publications
Molecular dynamics (MD) simulations have become increasingly popular in studying the
motions and functions of biomolecules. The accuracy of the simulation, however, is highly …

Developing a molecular dynamics force field for both folded and disordered protein states

P Robustelli, S Piana, DE Shaw - Proceedings of the …, 2018 - National Acad Sciences
Molecular dynamics (MD) simulation is a valuable tool for characterizing the structural
dynamics of folded proteins and should be similarly applicable to disordered proteins and …

ff14SB: improving the accuracy of protein side chain and backbone parameters from ff99SB

JA Maier, C Martinez, K Kasavajhala… - Journal of chemical …, 2015 - ACS Publications
Molecular mechanics is powerful for its speed in atomistic simulations, but an accurate force
field is required. The Amber ff99SB force field improved protein secondary structure balance …

Improved peptide and protein torsional energetics with the OPLS-AA force field

MJ Robertson, J Tirado-Rives… - Journal of chemical …, 2015 - ACS Publications
The development and validation of new peptide dihedral parameters are reported for the
OPLS-AA force field. High accuracy quantum chemical methods were used to scan φ, ψ, χ1 …

Optimization of the Additive CHARMM All-Atom Protein Force Field Targeting Improved Sampling of the Backbone ϕ, ψ and Side-Chain χ1 and χ2 Dihedral Angles

RB Best, X Zhu, J Shim, PEM Lopes… - Journal of chemical …, 2012 - ACS Publications
While the quality of the current CHARMM22/CMAP additive force field for proteins has been
demonstrated in a large number of applications, limitations in the model with respect to the …

Balanced protein–water interactions improve properties of disordered proteins and non-specific protein association

RB Best, W Zheng, J Mittal - Journal of chemical theory and …, 2014 - ACS Publications
Some frequently encountered deficiencies in all-atom molecular simulations, such as
nonspecific protein–protein interactions being too strong, and unfolded or disordered states …

Polarizable atomic multipole-based AMOEBA force field for proteins

Y Shi, Z Xia, J Zhang, R Best, C Wu… - Journal of chemical …, 2013 - ACS Publications
Development of the AMOEBA (atomic multipole optimized energetics for biomolecular
simulation) force field for proteins is presented. The current version (AMOEBA-2013) utilizes …

Polyproline-II helix in proteins: structure and function

AA Adzhubei, MJE Sternberg, AA Makarov - Journal of molecular biology, 2013 - Elsevier
The poly-l-proline type II (PPII) helix in recent years has emerged clearly as a structural class
not only of fibrillar proteins (in collagen, PPII is a dominant conformation) but also of the …