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Modulation by calcium of the potassium permeability of dog heart sarcolemmal vesicles.
The movement of K+ in heart sarcolemmal vesicles has been followed through the opposing movement of the tetraphenylphosphonium ion. Ca2+ (5-50 microM) stimulates the efflux of K+ from K+-loaded vesicles [Km(Ca2+) approximately equal to 10 microM]. and the activation requires that Ca2+ be present ins...
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| Main Authors: | , |
|---|---|
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
1982
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC346990/ https://ncbi.nlm.nih.gov/pubmed/6964387 |
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