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20231223134231.0 |
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231223s2007 xx ||||| 00| ||eng c |
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|a pubmed24n0579.xml
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|a (DE-627)NLM173648088
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|a (NLM)17855731
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Monte, Elena
|e verfasserin
|4 aut
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1 |
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|a Out of the dark
|b how the PIFs are unmasking a dual temporal mechanism of phytochrome signalling
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 05.02.2008
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|a Date Revised 21.11.2008
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Following light-induced nuclear translocation, the phytochromes induce changes in gene expression to regulate plant development. PIF3 and other PIFs (phytochrome-interacting factors), members of the bHLH (basic helix-loop-helix) family of transcriptional regulators, interact specifically with the active Pfr conformer of the phytochrome molecule, suggesting that the PIFs are key components of phytochrome signal transduction. The mechanism by which the PIFs transduce phytochrome signals is not understood. After initial studies that suggested that PIF3 was a positive regulator of phytochrome signalling, mutant studies indicated that the PIFs primarily act as negative regulators in the pathway. Furthermore, in some cases they accumulate in the dark and are degraded upon illumination by the ubiquitin-26S proteasome system. At least for PIF3, the protein degradation depends on direct interaction with the phytochrome molecule and is preceded by protein phosphorylation. In this review, the current understanding of the role of the PIFs in phytochrome-mediated photomorphogenesis will be summarized, and recent findings suggesting an unanticipated dual mechanism of action of the PIFs will be discussed
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|a Journal Article
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|a Review
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|a Phytochrome
|2 NLM
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|a 11121-56-5
|2 NLM
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| 700 |
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|a Al-Sady, Bassem
|e verfasserin
|4 aut
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|a Leivar, Pablo
|e verfasserin
|4 aut
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|a Quail, Peter H
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 58(2007), 12 vom: 13., Seite 3125-33
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:58
|g year:2007
|g number:12
|g day:13
|g pages:3125-33
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|d 58
|j 2007
|e 12
|b 13
|h 3125-33
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