Identification of structures for ion channel kinetic models.

Markov models of ion channel dynamics have evolved as experimental advances have improved our understanding of channel function. Past studies have examined limited sets of various topologies for Markov models of channel dynamics. We present a systematic method for identification of all possible Mark...

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Autores principales: Kathryn E Mangold, Wei Wang, Eric K Johnson, Druv Bhagavan, Jonathan D Moreno, Jeanne M Nerbonne, Jonathan R Silva
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Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/3aacf089bcfd4490b3426bc8206f6128
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spelling oai:doaj.org-article:3aacf089bcfd4490b3426bc8206f61282021-12-02T19:58:04ZIdentification of structures for ion channel kinetic models.1553-734X1553-735810.1371/journal.pcbi.1008932https://doaj.org/article/3aacf089bcfd4490b3426bc8206f61282021-08-01T00:00:00Zhttps://doi.org/10.1371/journal.pcbi.1008932https://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358Markov models of ion channel dynamics have evolved as experimental advances have improved our understanding of channel function. Past studies have examined limited sets of various topologies for Markov models of channel dynamics. We present a systematic method for identification of all possible Markov model topologies using experimental data for two types of native voltage-gated ion channel currents: mouse atrial sodium currents and human left ventricular fast transient outward potassium currents. Successful models identified with this approach have certain characteristics in common, suggesting that aspects of the model topology are determined by the experimental data. Incorporating these channel models into cell and tissue simulations to assess model performance within protocols that were not used for training provided validation and further narrowing of the number of acceptable models. The success of this approach suggests a channel model creation pipeline may be feasible where the structure of the model is not specified a priori.Kathryn E MangoldWei WangEric K JohnsonDruv BhagavanJonathan D MorenoJeanne M NerbonneJonathan R SilvaPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 17, Iss 8, p e1008932 (2021)
institution DOAJ
collection DOAJ
language EN
topic Biology (General)
QH301-705.5
spellingShingle Biology (General)
QH301-705.5
Kathryn E Mangold
Wei Wang
Eric K Johnson
Druv Bhagavan
Jonathan D Moreno
Jeanne M Nerbonne
Jonathan R Silva
Identification of structures for ion channel kinetic models.
description Markov models of ion channel dynamics have evolved as experimental advances have improved our understanding of channel function. Past studies have examined limited sets of various topologies for Markov models of channel dynamics. We present a systematic method for identification of all possible Markov model topologies using experimental data for two types of native voltage-gated ion channel currents: mouse atrial sodium currents and human left ventricular fast transient outward potassium currents. Successful models identified with this approach have certain characteristics in common, suggesting that aspects of the model topology are determined by the experimental data. Incorporating these channel models into cell and tissue simulations to assess model performance within protocols that were not used for training provided validation and further narrowing of the number of acceptable models. The success of this approach suggests a channel model creation pipeline may be feasible where the structure of the model is not specified a priori.
format article
author Kathryn E Mangold
Wei Wang
Eric K Johnson
Druv Bhagavan
Jonathan D Moreno
Jeanne M Nerbonne
Jonathan R Silva
author_facet Kathryn E Mangold
Wei Wang
Eric K Johnson
Druv Bhagavan
Jonathan D Moreno
Jeanne M Nerbonne
Jonathan R Silva
author_sort Kathryn E Mangold
title Identification of structures for ion channel kinetic models.
title_short Identification of structures for ion channel kinetic models.
title_full Identification of structures for ion channel kinetic models.
title_fullStr Identification of structures for ion channel kinetic models.
title_full_unstemmed Identification of structures for ion channel kinetic models.
title_sort identification of structures for ion channel kinetic models.
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/3aacf089bcfd4490b3426bc8206f6128
work_keys_str_mv AT kathrynemangold identificationofstructuresforionchannelkineticmodels
AT weiwang identificationofstructuresforionchannelkineticmodels
AT erickjohnson identificationofstructuresforionchannelkineticmodels
AT druvbhagavan identificationofstructuresforionchannelkineticmodels
AT jonathandmoreno identificationofstructuresforionchannelkineticmodels
AT jeannemnerbonne identificationofstructuresforionchannelkineticmodels
AT jonathanrsilva identificationofstructuresforionchannelkineticmodels
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