GENESIS: a hybrid‐parallel and multi‐scale molecular dynamics simulator with enhanced sampling algorithms for biomolecular and cellular simulations

J Jung, T Mori, C Kobayashi… - Wiley …, 2015 - Wiley Online Library
GENESIS (Generalized‐Ensemble Simulation System) is a new software package for
molecular dynamics (MD) simulations of macromolecules. It has two MD simulators, called …

Molecular dynamics simulation studies on the aggregation of amyloid-β peptides and their disaggregation by ultrasonic wave and infrared laser irradiation

H Okumura, SG Itoh - Molecules, 2022 - mdpi.com
Alzheimer's disease is understood to be caused by amyloid fibrils and oligomers formed by
aggregated amyloid-β (Aβ) peptides. This review article presents molecular dynamics (MD) …

Finding our way in the dark proteome

A Bhowmick, DH Brookes, SR Yost… - Journal of the …, 2016 - ACS Publications
The traditional structure–function paradigm has provided significant insights for well-folded
proteins in which structures can be easily and rapidly revealed by X-ray crystallography …

Perspective for Molecular Dynamics Simulation Studies of Amyloid-β Aggregates

H Okumura - The Journal of Physical Chemistry B, 2023 - ACS Publications
The cause of Alzheimer's disease is related to aggregates such as oligomers and amyloid
fibrils consisting of amyloid-β (Aβ) peptides. Molecular dynamics (MD) simulation studies …

Role of water molecules and helix structure stabilization in the laser-induced disruption of amyloid fibrils observed by nonequilibrium molecular dynamics simulations

H Okumura, SG Itoh, K Nakamura… - The Journal of Physical …, 2021 - ACS Publications
Water plays a crucial role in the formation and destruction of biomolecular structures. The
mechanism for destroying biomolecular structures was thought to be an active breaking of …

Replica-permutation molecular dynamics simulations of an amyloid-β (16–22) peptide and polyphenols

LLN Ngoc, SG Itoh, P Sompornpisut… - Chemical Physics Letters, 2020 - Elsevier
Aggregates of amyloid-β (Aβ) peptides, such as oligomers and amyloid fibrils, are related to
Alzheimer's disease. Polyphenols are known to inhibit the aggregation of Aβ peptides. We …

Dynamic properties of SARS-CoV and SARS-CoV-2 RNA-dependent RNA polymerases studied by molecular dynamics simulations

SG Itoh, S Tanimoto, H Okumura - Chemical Physics Letters, 2021 - Elsevier
One of the promising drug targets against COVID-19 is an RNA-dependent RNA polymerase
(RdRp) of SARS-CoV-2. The tertiary structures of the SARS-CoV-2 and SARS-CoV RdRps …

Hamiltonian replica‐permutation method and its applications to an alanine dipeptide and amyloid‐β (29–42) peptides

SG Itoh, H Okumura - Journal of Computational Chemistry, 2013 - Wiley Online Library
We propose the Hamiltonian replica‐permutation method (RPM)(or multidimensional RPM)
for molecular dynamics and Monte Carlo simulations, in which parameters in the …

Dimerization process of amyloid-β (29–42) studied by the Hamiltonian replica-permutation molecular dynamics simulations

SG Itoh, H Okumura - The Journal of Physical Chemistry B, 2014 - ACS Publications
The amyloid-β peptides form amyloid fibrils which are associated with Alzheimer's disease.
Amyloid-β (29–42) is its C-terminal fragment and a critical determinant of the amyloid …

State-of-the-art molecular dynamics simulation studies of RNA-dependent RNA polymerase of SARS-CoV-2

S Tanimoto, SG Itoh, H Okumura - International Journal of Molecular …, 2022 - mdpi.com
Molecular dynamics (MD) simulations are powerful theoretical methods that can reveal
biomolecular properties, such as structure, fluctuations, and ligand binding, at the level of …