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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2015.03.006
|2 doi
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|a pubmed24n0825.xml
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|a (DE-627)NLM247509213
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|a (NLM)25817546
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|a (PII)S0981-9428(15)00068-6
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Xie, Lisi
|e verfasserin
|4 aut
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| 245 |
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|a UV-B induction of the E3 ligase ARIADNE12 depends on CONSTITUTIVELY PHOTOMORPHOGENIC 1
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 10.03.2016
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2015 The Authors. Published by Elsevier Masson SAS.. All rights reserved.
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|a The UV-B inducible ARIADNE12 (ARI12) gene of Arabidopsis thaliana is a member of the RING-between-RING (RBR) family of E3 ubiquitin ligases for which a novel ubiquitination mechanism was identified in mammalian homologs. This RING-HECT hybrid mechanism needs a conserved cysteine which is replaced by serine in ARI12 and might affect the E3 ubiquitin ligase activity. We have shown that under photomorphogenic UV-B, ARI12 is a downstream target of the classical ultraviolet B (UV-B) UV Resistance Locus 8 (UVR8) pathway. However, under high fluence rate of UV-B ARI12 was induced independently of UVR8 and the UV-A/blue light and red/far-red photoreceptors. A key component of several light signaling pathways is Constitutively Photomorphogenic 1 (COP1). Upon UV-B COP1 is trapped in the nucleus through interaction with UVR8 permitting the activation of genes that regulate the biosynthesis of UV-B protective metabolites and growth adaptations. To clarify the role of COP1 in the regulation of ARI12 mRNA expression and ARI12 protein stability, localization and interaction with COP1 was assessed with and without UV-B. We found that COP1 controls ARI12 in white light, low and high fluence rate of UV-B. Furthermore we show that ARI12 is indeed an E3 ubiquitin ligase which is mono-ubiquitinated, a prerequisite for the RING-HECT hybrid mechanism. Finally, genetic analyses with transgenes expressing a genomic pmARI12:ARI12-GFP construct confirm the epistatic interaction between COP1 and ARI12 in growth responses to high fluence rate UV-B
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a ARIADNE12 (ARI12)
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|a Arabidopsis
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|a CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1)
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|a E3 ligase
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|a Transcription
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|a UV-B
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|a Arabidopsis Proteins
|2 NLM
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|a Chromosomal Proteins, Non-Histone
|2 NLM
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|a Uvr8 protein, Arabidopsis
|2 NLM
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| 650 |
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|a AT2G32950 protein, Arabidopsis
|2 NLM
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| 650 |
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|a EC 2.3.2.27
|2 NLM
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| 650 |
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|a Ubiquitin-Protein Ligases
|2 NLM
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| 650 |
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|a EC 2.3.2.27
|2 NLM
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| 700 |
1 |
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|a Lang-Mladek, Christina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Richter, Julia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nigam, Neha
|e verfasserin
|4 aut
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|a Hauser, Marie-Theres
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 93(2015) vom: 15. Aug., Seite 18-28
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:93
|g year:2015
|g day:15
|g month:08
|g pages:18-28
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| 856 |
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|u http://dx.doi.org/10.1016/j.plaphy.2015.03.006
|3 Volltext
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|d 93
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