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Competitive binding interaction between Zn2+ and saxitoxin in cardiac Na+ channels. Evidence for a sulfhydryl group in the Zn2+/saxitoxin binding site.

Mammalian heart Na+ channels exhibit approximately 100-fold higher affinity for block by external Zn2+ than other Na+ channel subtypes. With batrachotoxin-modified Na+ channels from dog or calf heart, micromolar concentrations of external Zn2+ result in a flickering block to a substate level with a...

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Bibliografski detalji
Glavni autori: Schild, L, Moczydlowski, E
Format: Artigo
Jezik:Inglês
Izdano: 1991
Teme:
Online pristup:https://ncbi.nlm.nih.gov/pmc/articles/PMC1281218/
https://ncbi.nlm.nih.gov/pubmed/1646656
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