2021
DOI: 10.1021/acs.jpcb.0c10490
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Hydrophobic Gating and 1/f Noise of the Anthrax Toxin Channel

Abstract: Metrics & MoreArticle Recommendations * sı Supporting Information ABSTRACT: "Pink" or 1/f noise is a natural phenomenon omnipresent in physics, economics, astrophysics, biology, and even music and languages. In electrophysiology, the stochastic activity of a number of biological ion channels and artificial nanopores could be characterized by current noise with a 1/f power spectral density. In the anthrax toxin channel (PA 63 ), it appears as fast voltage-independent current interruptions between conducting and… Show more

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Cited by 7 publications
(2 citation statements)
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“…The φ-clamp structures seem stable in the same con guration as closed (6-Å diameter) in all reported structures of CDTb, Ib, and PA, and no other open conformation was observed. However, two assumed open-states have been observed in electrophysiological studies 43,45 . To address this, the high-resolution structure of the translocation complex needs to be clari ed.…”
Section: Discussionmentioning
confidence: 99%
“…The φ-clamp structures seem stable in the same con guration as closed (6-Å diameter) in all reported structures of CDTb, Ib, and PA, and no other open conformation was observed. However, two assumed open-states have been observed in electrophysiological studies 43,45 . To address this, the high-resolution structure of the translocation complex needs to be clari ed.…”
Section: Discussionmentioning
confidence: 99%
“…The short-range non-bonding (van der Waals (vdW) and Coulomb) interactions are computed with a cut-off of 1.2 nm, and long-range electrostatic interactions were computed using the Particle-Mesh-Ewald (PME) 55 method. The above-mentioned MD protocol was used to obtain the stable MD trajectories of various systems [56][57][58][59][60][61][62] involving proteins and lipid membranes. Various structural properties, such as nal snapshots, RMSDs, RMSF, RMSD per residue, number of hydrogen bonds, free-energy landscape (FELs), protein-ligand interactions, and binding energies, were obtained by analyzing production MD trajectories.…”
Section: Molecular Docking and Molecular Dynamics Simulation Methodologymentioning
confidence: 99%