Blue light-induced autophosphorylation of phototropin is a primary step for signaling.

@article{Inoue2008BlueLA,
  title={Blue light-induced autophosphorylation of phototropin is a primary step for signaling.},
  author={Shin-ichiro Inoue and Toshinori Kinoshita and Masaki Matsumoto and Keiichi I Nakayama and Michio Doi and Ken-ichiro Shimazaki},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2008},
  volume={105 14},
  pages={
          5626-31
        }
}
Phototropins are autophosphorylating protein kinases of plant-specific blue light receptors. They regulate various blue light responses, including phototropism, chloroplast movements, hypocotyl growth inhibition, leaf flattening, and stomatal opening. However, the physiological role of autophosphorylation remains unknown. Here, we identified phosphorylation sites of Ser or Thr in the N terminus, Hinge1 region, kinase domain, and C terminus in Arabidopsis phototropin1 (phot1) by liquid… CONTINUE READING

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