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Differential effects of sulfhydryl reagents on saxitoxin and tetrodotoxin block of voltage-dependent Na channels.

We have probed a cysteine residue that confers resistance to tetrodotoxin (TTX) block in heart Na channels, with membrane-impermeant, cysteine-specific, methanethiosulfonate (MTS) analogs. Covalent addition of a positively charged group to the cysteinyl sulfhydryl reduced pore conductance by 87%. Th...

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Detalhes bibliográficos
Main Authors: Kirsch, G E, Alam, M, Hartmann, H A
Formato: Artigo
Idioma:Inglês
Publicado em: 1994
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Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC1225615/
https://ncbi.nlm.nih.gov/pubmed/7696471
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