The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels

Abstract: Tetrodotoxin (TTX) is a highly specific blocker of voltage-gated sodium channels. The dissociation constant of block varies with different channel isoforms. Until recently, channel resistance was thought to be primarily imparted by amino acid substitutions at a single position in domain I....

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Main Authors: C. Ruben, Shana L. Geffeney
Format: Article
Language:English
Published: MDPI AG 2006-04-01
Series:Marine Drugs
Subjects:
Online Access:http://www.mdpi.com/1660-3397/4/3/143/
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author C. Ruben
Shana L. Geffeney
author_facet C. Ruben
Shana L. Geffeney
author_sort C. Ruben
collection DOAJ
description Abstract: Tetrodotoxin (TTX) is a highly specific blocker of voltage-gated sodium channels. The dissociation constant of block varies with different channel isoforms. Until recently, channel resistance was thought to be primarily imparted by amino acid substitutions at a single position in domain I. Recent work reveals a novel site for tetrodotoxin resistance in the P-region of domain IV.
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spelling doaj.art-7c9bd2aa69e749e7a39021572f2d5bc22022-12-22T02:12:08ZengMDPI AGMarine Drugs1660-33972006-04-014314315610.3390/md403143The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium ChannelsC. RubenShana L. GeffeneyAbstract: Tetrodotoxin (TTX) is a highly specific blocker of voltage-gated sodium channels. The dissociation constant of block varies with different channel isoforms. Until recently, channel resistance was thought to be primarily imparted by amino acid substitutions at a single position in domain I. Recent work reveals a novel site for tetrodotoxin resistance in the P-region of domain IV.http://www.mdpi.com/1660-3397/4/3/143/neurotoxinTTXNaVinward sodium currentvoltage clamp
spellingShingle C. Ruben
Shana L. Geffeney
The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels
Marine Drugs
neurotoxin
TTX
NaV
inward sodium current
voltage clamp
title The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels
title_full The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels
title_fullStr The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels
title_full_unstemmed The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels
title_short The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels
title_sort structural basis and functional consequences of interactions between tetrodotoxin and voltage gated sodium channels
topic neurotoxin
TTX
NaV
inward sodium current
voltage clamp
url http://www.mdpi.com/1660-3397/4/3/143/
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