Origin and evolution of circadian clock genes in prokaryotes.
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ABSTRACT:
SUBMITTER: Dvornyk V
PROVIDER: S-EPMC151369 | biostudies-literature | 2003 Mar
REPOSITORIES: biostudies-literature
Publications
Origin and evolution of circadian clock genes in prokaryotes.
Dvornyk Volodymyr V Vinogradova Oxana O Nevo Eviatar E
Proceedings of the National Academy of Sciences of the United States of America 20030225 5
Regulation of physiological functions with approximate daily periodicity, or circadian rhythms, is a characteristic feature of eukaryotes. Until recently, cyanobacteria were the only prokaryotes reported to possess circadian rhythmicity. It is controlled by a cluster of three genes: kaiA, kaiB, and kaiC. Using sequence data of approximately 70 complete prokaryotic genomes from the various public depositories, we show here that the kai genes and their homologs have quite a different evolutionary ...[more]
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