The Barium Site in a Potassium Channel by X-Ray Crystallography

X-ray diffraction data were collected from frozen crystals (100°K) of the KcsA K+ channel equilibrated with solutions containing barium chloride. Difference electron density maps (Fbarium − Fnative, 5.0 Å resolution) show that Ba2+ resides at a single location within the selectivity filter. The Ba2+...

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Bibliographic Details
Main Authors: Jiang, Youxing, MacKinnon, Roderick
Format: Online
Language:English
Published: The Rockefeller University Press 2000
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2217209/