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ZEITLUPE is a circadian photoreceptor stabilized by GIGANTEA in blue light

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  • Woe-Yeon Kim

    (Ohio State University, 054 Rightmire Hall, 1060 Carmack Road, Columbus, Ohio 43210, USA
    Environmental Biotechnology National Core Research Center (BK21 program), Gyeongsang National University)

  • Sumire Fujiwara

    (Ohio State University, 054 Rightmire Hall, 1060 Carmack Road, Columbus, Ohio 43210, USA)

  • Sung-Suk Suh

    (Ohio State University, 054 Rightmire Hall, 1060 Carmack Road, Columbus, Ohio 43210, USA)

  • Jeongsik Kim

    (Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, South Korea)

  • Yumi Kim

    (Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, South Korea)

  • Linqu Han

    (Ohio State University, 054 Rightmire Hall, 1060 Carmack Road, Columbus, Ohio 43210, USA)

  • Karine David

    (School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand)

  • Joanna Putterill

    (School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand)

  • Hong Gil Nam

    (Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, South Korea)

  • David E. Somers

    (Ohio State University, 054 Rightmire Hall, 1060 Carmack Road, Columbus, Ohio 43210, USA)

Abstract

In Aradopsis, rhythmic expression of the F–box protein, ZEITLUPE (ZTL), is necessary to sustain a normal circadian period, but the mechanism of this oscillation is unknown. GIGANTEA (GI), a protein previously implicated in the circadian clock, but with unknown molecular function, is essential to establish and sustain oscillations of ZTL by direct protein–protein interactions. Furthermore, this stabilization is modulated by light through the N–terminal flavin–binding LIGHT, OXYGEN OR VOLTAGE (LOV) domain of ZTL.

Suggested Citation

  • Woe-Yeon Kim & Sumire Fujiwara & Sung-Suk Suh & Jeongsik Kim & Yumi Kim & Linqu Han & Karine David & Joanna Putterill & Hong Gil Nam & David E. Somers, 2007. "ZEITLUPE is a circadian photoreceptor stabilized by GIGANTEA in blue light," Nature, Nature, vol. 449(7160), pages 356-360, September.
    • Handle: RePEc:nat:nature:v:449:y:2007:i:7160:d:10.1038_nature06132
    DOI: 10.1038/nature06132
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