Cyano-bacteria obtain energy from photosynthesis. To optimize their life processes and energy production during the illuminated portion of the day, they utilize a circadian system. The animation presents a simplified view of the protein-protein interactions in the cyano-bacterial circadian system using the PDB structures 5n8y and 2gbl. Read the Molecule of the Month on Circadian Clock Proteins to learn how they measure time in our cells.
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