CHAP: A versatile tool for the structural and functional annotation of ion channel pores

The control of ion channel permeation requires the modulation of energetic barriers or "gates" within their pores. However, such barriers are often simply identified from the physical dimensions of the pore. Such approaches have worked well in the past,but there is now evidence that the un...

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Détails bibliographiques
Auteurs principaux: Klesse, G, Rao, S, Sansom, M, Tucker, S
Format: Journal article
Langue:English
Publié: Elsevier 2019
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author Klesse, G
Rao, S
Sansom, M
Tucker, S
author_facet Klesse, G
Rao, S
Sansom, M
Tucker, S
author_sort Klesse, G
collection OXFORD
description The control of ion channel permeation requires the modulation of energetic barriers or "gates" within their pores. However, such barriers are often simply identified from the physical dimensions of the pore. Such approaches have worked well in the past,but there is now evidence that the unusual behaviour of water within narrow hydrophobic pores can produce an energetic barrier to permeation without requiring steric occlusion of the pathway. Many different ion channels have now been shown to exploit "hydrophobic gating" to regulate ion flow, and it is clear that new tools are required for more accurate functional annotation of the increasing number of ion channel structures becoming available. We have previously shown how molecular dynamics simulations of water can be used as a proxy to predict hydrophobic gates, and we now present a new and highly versatile computational tool, the Channel Annotation Package (CHAP) that implements this methodology.
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spelling oxford-uuid:59c5e4e4-cdb0-4dd4-b825-f6e4aa70013e2022-03-26T17:11:44ZCHAP: A versatile tool for the structural and functional annotation of ion channel poresJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:59c5e4e4-cdb0-4dd4-b825-f6e4aa70013eEnglishSymplectic Elements at OxfordElsevier2019Klesse, GRao, SSansom, MTucker, SThe control of ion channel permeation requires the modulation of energetic barriers or "gates" within their pores. However, such barriers are often simply identified from the physical dimensions of the pore. Such approaches have worked well in the past,but there is now evidence that the unusual behaviour of water within narrow hydrophobic pores can produce an energetic barrier to permeation without requiring steric occlusion of the pathway. Many different ion channels have now been shown to exploit "hydrophobic gating" to regulate ion flow, and it is clear that new tools are required for more accurate functional annotation of the increasing number of ion channel structures becoming available. We have previously shown how molecular dynamics simulations of water can be used as a proxy to predict hydrophobic gates, and we now present a new and highly versatile computational tool, the Channel Annotation Package (CHAP) that implements this methodology.
spellingShingle Klesse, G
Rao, S
Sansom, M
Tucker, S
CHAP: A versatile tool for the structural and functional annotation of ion channel pores
title CHAP: A versatile tool for the structural and functional annotation of ion channel pores
title_full CHAP: A versatile tool for the structural and functional annotation of ion channel pores
title_fullStr CHAP: A versatile tool for the structural and functional annotation of ion channel pores
title_full_unstemmed CHAP: A versatile tool for the structural and functional annotation of ion channel pores
title_short CHAP: A versatile tool for the structural and functional annotation of ion channel pores
title_sort chap a versatile tool for the structural and functional annotation of ion channel pores
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AT tuckers chapaversatiletoolforthestructuralandfunctionalannotationofionchannelpores