Water networks in photosystem II using crystalline molecular dynamics simulations and room-temperature XFEL serial crystallography

MD Doyle, A Bhowmick, DC Wych… - Journal of the …, 2023 - ACS Publications
Structural dynamics of water and its hydrogen-bonding networks play an important role in
enzyme function via the transport of protons, ions, and substrates. To gain insights into these …

Enhancing sampling of water rehydration on ligand binding: a comparison of techniques

Y Ge, DC Wych, ML Samways, ME Wall… - Journal of chemical …, 2022 - ACS Publications
Water often plays a key role in protein structure, molecular recognition, and mediating
protein–ligand interactions. Thus, free energy calculations must adequately sample water motions, …

Changes in an enzyme ensemble during catalysis observed by high-resolution XFEL crystallography

N Smith, M Dasgupta, DC Wych, C Dolamore… - Science …, 2024 - science.org
Enzymes populate ensembles of structures necessary for catalysis that are difficult to
experimentally characterize. We use time-resolved mix-and-inject serial crystallography at an x-ray …

Structure-based experimental datasets for benchmarking of protein simulation force fields

…, P Robustelli, VA Voelz, ME Wall, DC Wych… - arXiv preprint arXiv …, 2023 - arxiv.org
This review article provides an overview of structurally oriented, experimental datasets that
can be used to benchmark protein force fields, focusing on data generated by nuclear …

Molecular-dynamics simulations of macromolecular diffraction, part II: Analysis of protein crystal simulations.

DC Wych, ME Wall - Methods in enzymology, 2023 - europepmc.org
Molecular-dynamics (MD) simulations have contributed substantially to our understanding
of protein structure and dynamics, yielding insights into many biological processes including …

[HTML][HTML] Liquid-like and rigid-body motions in molecular-dynamics simulations of a crystalline protein

DC Wych, JS Fraser, DL Mobley, ME Wall - Structural Dynamics, 2019 - pubs.aip.org
To gain insight into crystalline protein dynamics, we performed molecular-dynamics (MD)
simulations of a periodic 2× 2× 2 supercell of staphylococcal nuclease. We used the resulting …

Molecular-dynamics simulations of macromolecular diffraction, part I: Preparation of protein crystal simulations.

DC Wych, ME Wall - Methods in enzymology, 2023 - europepmc.org
Molecular-dynamics (MD) simulations of protein crystals enable the prediction of structural
and dynamical features of both the protein and the solvent components of macromolecular …

[HTML][HTML] Molecular-dynamics simulation methods for macromolecular crystallography

DC Wych, PC Aoto, L Vu, AM Wolff… - … Section D: Structural …, 2023 - scripts.iucr.org
It is investigated whether molecular-dynamics (MD) simulations can be used to enhance
macromolecular crystallography (MX) studies. Historically, protein crystal structures have been …

[PDF][PDF] Enhancing Sampling of Water Rearrangements on Ligand Binding: A Comparison of Techniques

Y Ge, DC Wych, ML Samways, ME Wall, JW Essex… - bioRxiv, 2021 - researchgate.net
1 ABSTRACT Water often plays a key role in protein structure, molecular recognition, and
mediating protein-ligand interactions. Thus, free energy calculations must adequately sample …

[PDF][PDF] How Much Pre-Polarization is Ideal for Fixed-Charge MD Simulations?

PS Nerenberg, JK Steck, DC Wych - Biophysical Journal, 2014 - cell.com
A fixed-charge MD force field by definition requires a compromise in the electrostatic model
used. For example, amino acids in the hydrophobic core of a protein are modeled with the …