Hoecker, Ute 
ORCID: 0000-0002-5636-9777
(2017).
The activities of the E3 ubiquitin ligase COP1/SPA, a key repressor in light signaling.
Curr. Opin. Plant Biol., 37.
S. 63 - 70.
LONDON:
CURRENT BIOLOGY LTD.
ISSN 1879-0356
Abstract
Light is a critical signal to integrate plant growth and development with the environment. Downstream of photoreceptors, the E3 ubiquitin ligase COP1/SPA is a key repressor of photomorphogenesis which targets many positive regulators of light signaling, mainly transcription factors, for degradation in darkness. In light-grown plants COP1/SPA activity is repressed, allowing light responses to occur. This review provides an overview on our current knowledge on COP1/SPA repressor function, focusing in particular on the roles of the respective protein domains and the mechanisms of light-induced inactivation of COP1/SPA. Moreover, we summarize how COP1 activity is regulated by other interacting proteins, such as a SUMO E3 ligase and Phytochrome-Interacting Factors (PIFs), as well as by hormones. At last, several novel functions of COP1 that were recently revealed are included.
| Item Type: | Journal Article | ||||||||
| Creators: |
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| URN: | urn:nbn:de:hbz:38-229646 | ||||||||
| DOI: | 10.1016/j.pbi.2017.03.015 | ||||||||
| Journal or Publication Title: | Curr. Opin. Plant Biol. | ||||||||
| Volume: | 37 | ||||||||
| Page Range: | S. 63 - 70 | ||||||||
| Date: | 2017 | ||||||||
| Publisher: | CURRENT BIOLOGY LTD | ||||||||
| Place of Publication: | LONDON | ||||||||
| ISSN: | 1879-0356 | ||||||||
| Language: | English | ||||||||
| Faculty: | Faculty of Mathematics and Natural Sciences | ||||||||
| Divisions: | Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute | ||||||||
| Subjects: | no entry | ||||||||
| Uncontrolled Keywords: |
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| Refereed: | Yes | ||||||||
| URI: | http://kups.ub.uni-koeln.de/id/eprint/22964 |
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