Nature Communications (Oct 2017)

Tyrosine phosphorylation of the GARU E3 ubiquitin ligase promotes gibberellin signalling by preventing GID1 degradation

  • Keiichirou Nemoto,
  • Abdelaziz Ramadan,
  • Gen-ichiro Arimura,
  • Kenichiro Imai,
  • Kentaro Tomii,
  • Kazuo Shinozaki,
  • Tatsuya Sawasaki

DOI
https://doi.org/10.1038/s41467-017-01005-5
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 15

Abstract

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Plants respond to gibberellins via GID1-dependent degradation of DELLA proteins. Here, Nemoto et al. show that the gibberellin response is positively regulated by tyrosine phosphorylation of GARU, an E3 ubiquitin ligase that mediates degradation of GID1.