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A Ring of Negative Charges in the Intracellular Vestibule of Kir2.1 Channel Modulates K(+) Permeation

The glutamate at site 224 of a Kir2.1 channel plays an important role in K(+) permeation. The single-channel inward current flickers with reduced conductance in an E224G mutant. We show that open-channel fluctuations can also be observed in E224C, E224K, and E224Q mutants. Yet, open-channel fluctuat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Chang, Hsueh-Kai, Yeh, Shih-Hao, Shieh, Ru-Chi
Format: Artigo
Sprache:Inglês
Veröffentlicht: The Biophysical Society 2005
Schlagworte:
Online Zugang:https://ncbi.nlm.nih.gov/pmc/articles/PMC1305002/
https://ncbi.nlm.nih.gov/pubmed/15516518
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1529/biophysj.104.052217
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