EID1, an F-box protein involved in phytochrome A-specific light signaling.
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.
Dieterle
M
M
Universität Freiburg, Institut für Biologie 2/Botanik, D-79104 Freiburg, Germany.
Zhou
Y C
YC
Schäfer
E
E
Funk
M
M
Kretsch
T
T
D000483:Alleles; D000595:Amino Acid Sequence; D029681:Arabidopsis Proteins; D001483:Base Sequence; D002467:Cell Nucleus / Q000378:metabolism; D003001:Cloning, Molecular; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics*; D044783:F-Box Proteins; D005808:Genes, Recessive; D049452:Green Fluorescent Proteins; D016350:Leucine Zippers; D008027:Light; D008164:Luminescent Proteins / Q000378:metabolism; D008856:Microscopy, Fluorescence; D008969:Molecular Sequence Data; D009154:Mutation; D009687:Nuclear Proteins / Q000737:chemistry / Q000235:genetics*; D010641:Phenotype; D010834:Phytochrome / Q000235:genetics* / Q000502:physiology*; D051942:Phytochrome A; D010940:Plant Proteins / Q000378:metabolism; D011485:Protein Binding; D044843:SKP Cullin F-Box Protein Ligases; D017386:Sequence Homology, Amino Acid; D015398:Signal Transduction; D014018:Tissue Distribution; D014170:Transformation, Genetic; D020798:Two-Hybrid System Techniques
C120363:ASK1 protein, Arabidopsis; D029681:Arabidopsis Proteins; D004268:DNA-Binding Proteins; C426104:EID1 protein, Arabidopsis; D044783:F-Box Proteins; D008164:Luminescent Proteins; D009687:Nuclear Proteins; C497973:PHYA protein, Arabidopsis; D051942:Phytochrome A; D010940:Plant Proteins; D010834:Phytochrome; D049452:Green Fluorescent Proteins; C484058:ASK2 protein, Arabidopsis; D044843:SKP Cullin F-Box Protein Ligases