Affiliation:
1. Department of Chronobiology, University of Groningen, Haren, The Netherlands,
Abstract
Cyanobacteria were among the 1st organisms to evolve on earth. The molecular circadian clock proteins of cyanobacteria and their phylogenetics have recently been elucidated. This allows for a conjecture on the evolution of 1 of the 1st circadian clocks. A scenario has now been created by combining known in vitro and in vivo properties of the 3 clock proteins of cyanobacteria (KaiA, KaiB, and KaiC). This scenario describes the evolution of the cyanobacterial clock in gradual steps: evolving from a masking mechanism, toward an hourglass, into a clock.
Subject
Physiology (medical),Physiology
Cited by
20 articles.
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