Cryptochrome Structure and Signal Transduction

DOI Web Site 16 Citations
  • Chentao Lin
    Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, California 90095;
  • Dror Shalitin
    Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, California 90095;

Search this article

Description

<jats:p> Cryptochromes are photosensory receptors mediating light regulation of growth and development in plants. Since the isolation of the Arabidopsis CRY1 gene in 1993, cryptochromes have been found in every multicellular eukaryote examined. Most plant cryptochromes have a chromophore-binding domain that shares similar structure with DNA photolyase, and a carboxyl terminal extension that contains a DQXVP-acidic-STAES (DAS) domain conserved from moss, to fern, to angiosperm. In Arabidopsis, cryptochromes are nuclear proteins that mediate light control of stem elongation, leaf expansion, photoperiodic flowering, and the circadian clock. Cryptochromes may act by interacting with proteins such as phytochromes, COP1, and clock proteins, or/and chromatin and DNA. Recent studies suggest that cryptochromes undergo a blue light–dependent phosphorylation that affects the conformation, intermolecular interactions, physiological activities, and protein abundance of the photoreceptors. </jats:p>

Journal

Citations (16)*help

See more

Details 詳細情報について

Report a problem

Back to top