Electronic Polarizability Tunes the Function of the Human Bestrophin 1 Cl⁻ Channel.
Bestrophin channels
Molecular dynamics
anion permeation
anion-π
chloride selectivity
Journal
bioRxiv : the preprint server for biology
Titre abrégé: bioRxiv
Pays: United States
ID NLM: 101680187
Informations de publication
Date de publication:
14 Nov 2023
14 Nov 2023
Historique:
pubmed:
28
11
2023
medline:
28
11
2023
entrez:
28
11
2023
Statut:
epublish
Résumé
Mechanisms of anion permeation within ion channels and nanopores remain poorly understood. Recent cryo-electron microscopy structures of the human bestrophin 1 chloride channel (hBest1) provide an opportunity to evaluate ion interactions predicted by molecular dynamics (MD) simulations against experimental observations. We implement the fully polarizable forcefield AMOEBA in MD simulations of open and partially-open states of the hBest1. The AMOEBA forcefield models multipole moments up to the quadrupole; therefore, it captures induced dipole and anion-
Identifiants
pubmed: 38014257
doi: 10.1101/2023.11.14.567055
pmc: PMC10680768
pii:
doi:
Types de publication
Preprint
Langues
eng
Subventions
Organisme : NIGMS NIH HHS
ID : R01 GM127652
Pays : United States
Organisme : NIGMS NIH HHS
ID : R35 GM149252
Pays : United States
Déclaration de conflit d'intérêts
Declaration of interests J.C. is an employee of IBM Research.