Structural organization and interactions of COP1, a light-regulated developmental switch

Structural organization and interactions of COP1, a light-regulated developmental switch Arabidopsis seedling development follows contrasting patterns depending on ambient light conditions, photomorphogenesis in the light and skotomorphogenesis or etiolation in darkness. COP1 is a limiting or regulatory component in mediating repression of photomorphogenesis in the absence of light. COP1 acts within the nucleus in the dark, directly interacts and regulates specific transcription factors that are required for promoting photomorphogenesis. Light abrogates COP1 action and results in progressive nuclear depletion of COP1 with increasing light stimuli. COP1 contains multiple structural modules, which are responsible for interacting with distinct cellular factors and play specific functional roles. We review the most recent progress in understanding the COP1 action and propose specific models based on the recent studies. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Structural organization and interactions of COP1, a light-regulated developmental switch

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1006324115086
Publisher site
See Article on Publisher Site

Abstract

Arabidopsis seedling development follows contrasting patterns depending on ambient light conditions, photomorphogenesis in the light and skotomorphogenesis or etiolation in darkness. COP1 is a limiting or regulatory component in mediating repression of photomorphogenesis in the absence of light. COP1 acts within the nucleus in the dark, directly interacts and regulates specific transcription factors that are required for promoting photomorphogenesis. Light abrogates COP1 action and results in progressive nuclear depletion of COP1 with increasing light stimuli. COP1 contains multiple structural modules, which are responsible for interacting with distinct cellular factors and play specific functional roles. We review the most recent progress in understanding the COP1 action and propose specific models based on the recent studies.

Journal

Plant Molecular BiologySpringer Journals

Published: Oct 16, 2004

References

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