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Article

Transmembrane movement of the shaker K+ channel S4.

Neuron - 1 Feb 1996

Larsson H P, Baker O S, Dhillon D S, Isacoff E Y

Abstract excerpt

We have probed internal and external accessibility of S4 residues to the membrane-impermeant thiol reagent methanethiosulfonate-ethyltrimethlammonium (MTSET) in both open and closed, cysteine-substituted Shaker K+ channels. Our results indicate that S4 traverses the membrane with no more than 5 a...

Topics

Animals
Cell Membrane
Drosophila
Mutation
Oocytes
Patch-Clamp Techniques
Potassium Channels
Sulfhydryl Reagents
Xenopus laevis

Source

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Identifiers

PMID: 8789953
DOI: 10.1016/s0896-6273(00)80056-2

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 30 Aug 2026. Prepared record publication-8789953-2026-08-30.1. Manifest publication-graph-cohort-2026-08-30.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 30 Aug 2026.

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Transmembrane movement of the shaker K+ channel S4.PMID 8789953Read ↗

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Atomic proximity between S4 segment and pore domain in Shaker potassium channels.Semantic proximity Read ↗

Initial steps in the opening of a Shaker potassium channel.Semantic proximity Read ↗

Measurement of the movement of the S4 segment during the activation of a voltage-gated potassium channel.Semantic proximity Read ↗

Localization of the extracellular end of the voltage sensor S4 in a potassium channel.Semantic proximity Read ↗

Hydrophobic substitution mutations in the S4 sequence alter voltage-dependent gating in Shaker K+ channels.Semantic proximity Read ↗

S4 mutations alter the single-channel gating kinetics of Shaker K+ channels.Semantic proximity Read ↗

Gated access to the pore of a voltage-dependent K+ channel.Semantic proximity Read ↗

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The conserved phenylalanine in the K+ channel voltage-sensor domain creates a barrier with unidirectional effects.Semantic proximity Read ↗

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