EID1, an f-box protein involved in phytochrome a-specific light signaling

Monika Dieterle, Yong Chun Zhou, Eberhard Schäfer, Markus Funk, Thomas Kretsch*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

177 Citations (Scopus)


To perceive red and far-red light, plants have evolved specific photoreceptors called phytochromes. Even though the spectral properties of all phytochromes are very similar, they show a distinct mode of action. Here we describe EID1, a negatively acting component of the signaling cascade that shifts the responsiveness of the phytochrome A (phyA) signaling system associated with hypocotyl elongation from red to far-red wavelengths. EID1 is a novel nuclear F-box protein that contains a leucine zipper whose integrity is necessary for its biological function. EID1 most probably acts by targeting activated components of the phyA signaling pathway to ubiquitin-dependent proteolysis.

Original languageEnglish
Pages (from-to)939-944
Number of pages6
JournalGenes and Development
Issue number8
Publication statusPublished - 15 Apr 2001
Externally publishedYes


  • Arabidopsis
  • F-box protein
  • Light signaling
  • Phytochrome
  • SCF complex


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