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The Binding of κ-Conotoxin PVIIA and Fast C-Type Inactivation of Shaker K(+) Channels are Mutually Exclusive

κ-Conotoxin PVIIA (κ-PVIIA), a 27-amino acid peptide identified from the venom of Conus purpurascens, inhibits the Shaker K(+) channel by blocking its outer pore. The toxin appears as a gating modifier because its binding affinity decreases with relatively fast kinetics upon channel opening, but the...

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Bibliographische Detailangaben
Hauptverfasser: Koch, E. Dietlind, Olivera, Baldomero M., Terlau, Heinrich, Conti, Franco
Format: Artigo
Sprache:Inglês
Veröffentlicht: Biophysical Society 2004
Schlagworte:
Online Zugang:https://ncbi.nlm.nih.gov/pmc/articles/PMC1303782/
https://ncbi.nlm.nih.gov/pubmed/14695262
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