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Contact: Andy Freeberg
DOE/SLAC National Accelerator Laboratory

6-Molecule Ring of Urea Channels

Caption: An isolated look at the structure of the six-molecule ring of urea channels embedded in the membrane of Helicobacter pylori. Urea passes through the center of each of the six channel molecules. The center of the ring is filled with a lipid bilayer plug.

Credit: Hartmut Luecke / UC Irvine

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