Tracking and visualizing the circadian ticking of the cyanobacterial clock protein KaiC in solution.

@article{Murayama2011TrackingAV,
  title={Tracking and visualizing the circadian ticking of the cyanobacterial clock protein KaiC in solution.},
  author={Yoriko Murayama and Atsushi Mukaiyama and Keiko Imai and Yasuhiro Onoue and Akina Tsunoda and Atsushi Nohara and Tatsuro Ishida and Yuichiro Ma{\'e}da and Kazuki Terauchi and Takao Kondo and Shuji Akiyama},
  journal={The EMBO journal},
  year={2011},
  volume={30 1},
  pages={68-78}
}
The circadian clock in cyanobacteria persists even without the transcription/translation feedbacks proposed for eukaryotic systems. The period of the cyanobacterial clock is tuned to the circadian range by the ATPase activity of a clock protein known as KaiC. Here, we provide structural evidence on how KaiC ticks away 24 h while coupling the ATPase activity in its N-terminal ring to the phosphorylation state in its C-terminal ring. During the phosphorylation cycle, the C-terminal domains of… CONTINUE READING

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Quality control of protein standards for molecular mass determinations by small-angle X-ray scattering

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