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Potassium-Channels in Guard Cells - From Phenomenon to Molecule. III. Structural Analysis

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Logo of IWF (Göttingen)IWF (Göttingen)
 Hedrich, Rainer Becker, Dirk Fritzsch, Günter

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Title
Potassium-Channels in Guard Cells - From Phenomenon to Molecule. III. Structural Analysis
Alternative Title
Kalium-Kanäle in Schließzellen - Vom Phänomen zum Molekül. III. Strukturelle Analyse
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No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
This film contains music to which the collecting society GEMA holds the rights.
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IWF SignatureC 7041
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IWF Technical DataVideo ; F, 21 min

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Abstract
The molecular 3-dimensional structure of a potassium channel protein is resolved following protein purification, crystallization and X-ray analysis. For the first time the growth of protein crystals is visualized. The region responsible for potassium selectivity is depicted in a 3D reconstruction of the channel protein and the underlying molecular mechanism of potassium transport is explained.
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