Document Detail

The ubiquitin-proteasome system regulates plant hormone signaling.
MedLine Citation:
PMID:  20409276     Owner:  NLM     Status:  MEDLINE    
Plants utilize the ubiquitin-proteasome system (UPS) to modulate nearly every aspect of growth and development. Ubiquitin is covalently attached to target proteins through the action of three enzymes known as E1, E2, and E3. The ultimate outcome of this post-translational modification depends on the nature of the ubiquitin linkage and the extent of polyubiquitination. In most cases, ubiquitination results in degradation of the target protein in the 26S proteasome. During the last 10 years it has become clear that the UPS plays a prominent regulatory role in hormone biology. E3 ubiquitin ligases in particular actively participate in hormone perception, de-repression of hormone signaling pathways, degradation of hormone specific transcription factors, and regulation of hormone biosynthesis. It is certain that additional functions will be discovered as more of the nearly 1200 potential E3s in plants are elucidated.
Aaron Santner; Mark Estelle
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.; Review    
Journal Detail:
Title:  The Plant journal : for cell and molecular biology     Volume:  61     ISSN:  1365-313X     ISO Abbreviation:  Plant J.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-04-22     Completed Date:  2010-06-15     Revised Date:  2014-09-16    
Medline Journal Info:
Nlm Unique ID:  9207397     Medline TA:  Plant J     Country:  England    
Other Details:
Languages:  eng     Pagination:  1029-40     Citation Subset:  IM    
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MeSH Terms
Plant Growth Regulators / physiology*
Plants / metabolism*
Proteasome Endopeptidase Complex / physiology*
Protein Processing, Post-Translational
Ubiquitin / physiology*
Ubiquitin-Protein Ligases / physiology
Grant Support
Reg. No./Substance:
0/Plant Growth Regulators; 0/Ubiquitin; EC Endopeptidase Complex; EC Ligases

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