Imaging α-hemolysin with molecular dynamics: ionic conductance, osmotic permeability, and the electrostatic potential map

A Aksimentiev, K Schulten - Biophysical journal, 2005 - cell.com
Abstract α-Hemolysin of Staphylococcus aureus is a self-assembling toxin that forms a water-
filled transmembrane channel upon oligomerization in a lipid membrane. Apart from being …

[图书][B] Nanotechnology in biology and medicine: methods, devices, and applications

T Vo-Dinh - 2007 - taylorfrancis.com
The combination of biology and nanotechnology has led to a new generation of
nanodevices that make it possible to characterize the chemical, mechanical, and other …

Assessment of common simulation protocols for simulations of nanopores, membrane proteins, and channels

J Wong-Ekkabut, M Karttunen - Journal of chemical theory and …, 2012 - ACS Publications
Molecular dynamics (MD) simulation has become a common technique to study biological
systems. Transport of small molecules through carbon nanotubes and membrane proteins …

Effect of screening on the transport of polyelectrolytes through nanopores

G Oukhaled, L Bacri, J Mathe, J Pelta… - Europhysics …, 2008 - iopscience.iop.org
We study the transport of dextran sulfate molecules (M w= 8000 Da) through a bacterial α-
hemolysin channel inserted into a bilayer lipid membrane submitted to an external electric …

Ion selectivity of α-hemolysin with β-cyclodextrin adapter. II. Multi-ion effects studied with grand canonical Monte Carlo/Brownian dynamics simulations

B Egwolf, Y Luo, DE Walters… - The journal of physical …, 2010 - ACS Publications
In a previous study of ion selectivity of α-hemolysin (αHL) in complex with β-cyclodextrin
(βCD) adapter, we calculated the potential of mean force (PMF) and characterized the self …

Ionic transport through a protein nanopore: a Coarse-Grained Molecular Dynamics Study

N Basdevant, D Dessaux, R Ramirez - Scientific Reports, 2019 - nature.com
The MARTINI coarse-grained (CG) force field is used to test the ability of CG models to
simulate ionic transport through protein nanopores. The ionic conductivity of CG ions in …

Model-based prediction of the α-hemolysin structure in the hexameric state

S Furini, C Domene, M Rossi, M Tartagni… - Biophysical journal, 2008 - cell.com
The α-hemolysin toxin self-assembles in lipid bilayers to form water-filled pores. In recent
years, α-hemolysin has received great attention, mainly due to its possible usage as a …

Testing the applicability of Nernst-Planck theory in ion channels: comparisons with Brownian dynamics simulations

C Song, B Corry - PLoS One, 2011 - journals.plos.org
The macroscopic Nernst-Planck (NP) theory has often been used for predicting ion channel
currents in recent years, but the validity of this theory at the microscopic scale has not been …

Molecular dynamics simulations on the ionic current through charged nanopores

JM Xue, XQ Zou, YB Xie, YG Wang - Journal of Physics D …, 2009 - iopscience.iop.org
Molecular dynamics (MD) simulation was performed to investigate the ionic current through
charged nanopores, and the results were compared with the calculation of Poisson–Nernst …

Molecular dynamics simulation of water permeation through the alpha-hemolysin channel

J Wong-Ekkabut, M Karttunen - Journal of Biological Physics, 2016 - Springer
The alpha-hemolysin (AHL) nanochannel is a non-selective channel that allows for
uncontrolled transport of small molecules across membranes leading to cell death. Although …