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Article

Evidence for multiple effects of ProTxII on activation gating in Na(V)1.5.

Toxicon : official journal of the International Society on Toxinology - 1 Sept 2008

Edgerton Gabrielle B, Blumenthal Kenneth M, Hanck Dorothy A

Abstract excerpt

The peptide toxin ProTxII, recently isolated from the venom of the tarantula spider Thrixopelma pruriens, modifies gating in voltage-gated Na+ and Ca2+ channels. ProTxII is distinct from other known Na+ channel gating modifier toxins in that it affects activation, but not inactivation. It shifts activation gating positively and decreases current magnitude such that the dose-dependence of toxin action measured at...

Topics

Animals
Dose-Response Relationship, Drug
Humans
Ion Channel Gating
Muscle Proteins
Mutation
NAV1.5 Voltage-Gated Sodium Channel
Sodium Channels
Spider Venoms
Spiders

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 18657562
DOI: 10.1016/j.toxicon.2008.06.023
PMCID: PMC2613288

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-18657562-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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