Ito S, Nakamichi N, Nakamura Y, Niwa Y, Kato T, Murakami M, et al. Genetic linkages between circadian clock-associated components and phytochrome-dependent red light signal transduction in Arabidopsis thaliana. Plant Cell Physiol. 2007;48:971-83 pubmed
Ito S, Nakamichi N, Kiba T, Yamashino T, Mizuno T. Rhythmic and light-inducible appearance of clock-associated pseudo-response regulator protein PRR9 through programmed degradation in the dark in Arabidopsis thaliana. Plant Cell Physiol. 2007;48:1644-51 pubmed
..Our work further suggests that the presence of PRR9 polypeptides is controlled through proteasome-mediated programmed degradation in the dark. ..