ZEITLUPE is a circadian photoreceptor stabilized by GIGANTEA in blue light

Woe-Yeon Kim, Sumire Fujiwara, Sung-Suk Suh, Jeongsik Kim, Yumi Kim, Linqu Han, Karine David, Joanna Putterill, Hong Gil Nam and David E. Somers ()
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Woe-Yeon Kim: Ohio State University, 054 Rightmire Hall, 1060 Carmack Road, Columbus, Ohio 43210, USA
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

Nature, 2007, vol. 449, issue 7160, 356-360

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.

Date: 2007
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DOI: 10.1038/nature06132

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