Metarhodopsin 1

Introduction
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Trapping metarhodopsin I in 2D crystals
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Electron microscopy and image processing
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Three-dimensional density map of the photostationary state
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Comparison between the density map and the ground-state X-ray structure
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Density features for tryptophan residues
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Conclusions and References
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Electro crystallography reveals the structure of metarhodopsin 1 (pdf)