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EID1, an F-box protein involved in phytochrome A-specific light signaling.


ABSTRACT: 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.

SUBMITTER: Dieterle M 

PROVIDER: S-EPMC312672 | biostudies-literature | 2001 Apr

REPOSITORIES: biostudies-literature

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EID1, an F-box protein involved in phytochrome A-specific light signaling.

Dieterle M M   Zhou Y C YC   Schäfer E E   Funk M M   Kretsch T T  

Genes & development 20010401 8


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 zip  ...[more]

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