Recent structural studies of KaiA and KaiB, two bacterial biological clock proteins, mark the beginning of a new phase in the analysis of circadian clock mechanisms.
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Johnson, C., Egli, M. Visualizing a biological clockwork's cogs. Nat Struct Mol Biol 11, 584–585 (2004). https://doi.org/10.1038/nsmb0704-584
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DOI: https://doi.org/10.1038/nsmb0704-584