title: In search of a consensus model of the resting state of a voltage-sensing domain.
abstract: Voltage-sensing domains (VSDs) undergo conformational changes in response to the membrane potential and are the critical structural modules responsible for the activation of voltage-gated channels. Structural information about the key conformational states underlying voltage activation is currently incomplete. Through the use of experimentally determined residue-residue interactions as structural constraints, we determine and refine a model of the Kv channel VSD in the resting conformation. The resulting structural model is in broad agreement with results that originate from various labs using different techniques, indicating the emergence of a consensus for the structural basis of voltage sensing.
authors.affiliation: Department of Biochemistry and Molecular Biology, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.
authors.forename: Ernesto
authors.initials: E
authors.lastname: Vargas
authors.forename: Francisco
authors.initials: F
authors.lastname: Bezanilla
authors.forename: Benoît
authors.initials: B
authors.lastname: Roux
mesh_terms: D000818:Animals; D015640:Ion Channel Gating; D008958:Models, Molecular; D056004:Molecular Dynamics Simulation; D024642:Potassium Channels, Voltage-Gated / Q000737:chemistry* / Q000502:physiology; D017434:Protein Structure, Tertiary; D013329:Structure-Activity Relationship
chemical_list: D024642:Potassium Channels, Voltage-Gated