Phosphoenolpyruvate carboxylase kinase is controlled by a similar signaling cascade in CAM and C(4) plants.

@article{Bakrim2001PhosphoenolpyruvateCK,
  title={Phosphoenolpyruvate carboxylase kinase is controlled by a similar signaling cascade in CAM and C(4) plants.},
  author={Na{\"i}ma Bakrim and Jeanne Brulfert and Jean Vidal and Raymond Chollet},
  journal={Biochemical and biophysical research communications},
  year={2001},
  volume={286 5},
  pages={1158-62}
}
In Crassulacean acid metabolism (CAM) plants, phosphoenolpyruvate carboxylase (PEPC) is subject to day-night regulatory phosphorylation of a conserved serine residue in the plant enzyme's N-terminal domain. The dark increase in PEPC-kinase (PEPC-k) activity is under control of a circadian oscillator, via the enhanced expression of the corresponding gene (1). The signaling cascade leading to PEPC-k up-regulation was investigated in leaves and mesophyll cell protoplasts of the facultative, salt… CONTINUE READING

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