Abstract
Auxin binds to TRANSPORT INHIBITOR RESPONSE 1 and AUXIN SIGNALLING F-BOX proteins (TIR1/AFBs) and promotes the degradation of Aux/IAA transcriptional repressors. The proteasome regulator PROTEASOME REGULATOR1 (PTRE1) has now been shown to be required for auxin-mediated repression of 26S proteasome activity, thus providing new insights into the fine-tuning of the homoeostasis of Aux/IAA proteins and auxin signaling.
Keywords:
auxin; proteasome activity; proteasome inhibitor.
Copyright © 2016 Elsevier Ltd. All rights reserved.
Publication types
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Review
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Research Support, Non-U.S. Gov't
MeSH terms
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Arabidopsis Proteins / genetics
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Arabidopsis Proteins / metabolism
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F-Box Proteins / genetics
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F-Box Proteins / metabolism
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Gene Expression Regulation, Plant / genetics
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Gene Expression Regulation, Plant / physiology
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Indoleacetic Acids / metabolism*
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Proteasome Endopeptidase Complex / genetics
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Proteasome Endopeptidase Complex / metabolism*
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Receptors, Cell Surface / genetics
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Receptors, Cell Surface / metabolism
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Signal Transduction / genetics
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Signal Transduction / physiology
Substances
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Arabidopsis Proteins
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F-Box Proteins
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Indoleacetic Acids
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Receptors, Cell Surface
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TIR1 protein, Arabidopsis
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Proteasome Endopeptidase Complex
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ATP dependent 26S protease