KCNQs: Ligand- and Voltage-Gated Potassium Channels

Voltage-gated potassium (Kv) channels in the KCNQ (Kv7) family are essential features of a broad range of excitable and non-excitable cell types and are found in organisms ranging from Hydra vulgaris to Homo sapiens. Although they are firmly in the superfamily of S4 domain-bearing voltage-sensing io...

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Main Author: Geoffrey W. Abbott
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-06-01
Series:Frontiers in Physiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fphys.2020.00583/full
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author Geoffrey W. Abbott
author_facet Geoffrey W. Abbott
author_sort Geoffrey W. Abbott
collection DOAJ
description Voltage-gated potassium (Kv) channels in the KCNQ (Kv7) family are essential features of a broad range of excitable and non-excitable cell types and are found in organisms ranging from Hydra vulgaris to Homo sapiens. Although they are firmly in the superfamily of S4 domain-bearing voltage-sensing ion channels, KCNQ channels are highly sensitive to a range of endogenous and exogenous small molecules that act directly on the pore, the voltage-sensing domain, or the interface between the two. The focus of this review is regulation of KCNQs by direct binding of neurotransmitters and metabolites from both animals and plants and the role of the latter in the effects of plants consumed for food and as traditional folk medicines. The conceptual question arises: Are KCNQs voltage-gated channels that are also sensitive to ligands or ligand-gated channels that are also sensitive to voltage?
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spelling doaj.art-ea61eac266174292b964ca7cb17281da2022-12-21T23:57:08ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2020-06-011110.3389/fphys.2020.00583545420KCNQs: Ligand- and Voltage-Gated Potassium ChannelsGeoffrey W. AbbottVoltage-gated potassium (Kv) channels in the KCNQ (Kv7) family are essential features of a broad range of excitable and non-excitable cell types and are found in organisms ranging from Hydra vulgaris to Homo sapiens. Although they are firmly in the superfamily of S4 domain-bearing voltage-sensing ion channels, KCNQ channels are highly sensitive to a range of endogenous and exogenous small molecules that act directly on the pore, the voltage-sensing domain, or the interface between the two. The focus of this review is regulation of KCNQs by direct binding of neurotransmitters and metabolites from both animals and plants and the role of the latter in the effects of plants consumed for food and as traditional folk medicines. The conceptual question arises: Are KCNQs voltage-gated channels that are also sensitive to ligands or ligand-gated channels that are also sensitive to voltage?https://www.frontiersin.org/article/10.3389/fphys.2020.00583/fullepilepsyGABAherbal medicinehypertensionKCNEKCNQ2
spellingShingle Geoffrey W. Abbott
KCNQs: Ligand- and Voltage-Gated Potassium Channels
Frontiers in Physiology
epilepsy
GABA
herbal medicine
hypertension
KCNE
KCNQ2
title KCNQs: Ligand- and Voltage-Gated Potassium Channels
title_full KCNQs: Ligand- and Voltage-Gated Potassium Channels
title_fullStr KCNQs: Ligand- and Voltage-Gated Potassium Channels
title_full_unstemmed KCNQs: Ligand- and Voltage-Gated Potassium Channels
title_short KCNQs: Ligand- and Voltage-Gated Potassium Channels
title_sort kcnqs ligand and voltage gated potassium channels
topic epilepsy
GABA
herbal medicine
hypertension
KCNE
KCNQ2
url https://www.frontiersin.org/article/10.3389/fphys.2020.00583/full
work_keys_str_mv AT geoffreywabbott kcnqsligandandvoltagegatedpotassiumchannels