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External tetraethylammonium as a molecular caliper for sensing the shape of the outer vestibule of potassium channels.
External tetraethylammonium (TEA+) blocked currents through Kv1.1 channels in a voltage-independent manner between 0 and 100 mV. Lowering extracellular pH (pHo) increased the Kd for TEA+ block. A histidine at position 355 in the Kv1.1 channel protein (homologous to Shaker 425) was responsible for th...
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| Главные авторы: | , , , |
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| Формат: | Artigo |
| Язык: | Inglês |
| Опубликовано: |
1999
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| Предметы: | |
| Online-ссылка: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1300209/ https://ncbi.nlm.nih.gov/pubmed/10233054 |
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