Post-translational modifications of hormone-responsive transcription factors: the next level of regulation
Plants exhibit a high level of developmental plasticity and growth is responsive to multiple developmental and environmental cues. Hormones are small endogenous signalling molecules which are fundamental to this phenotypic plasticity. Post-translational modifications of proteins are a central featur...
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| Veröffentlicht in: | Journal of experimental botany Jg. 66; H. 16; S. 4933 |
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| Sprache: | Englisch |
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01.08.2015
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| ISSN: | 1460-2431, 1460-2431 |
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| Abstract | Plants exhibit a high level of developmental plasticity and growth is responsive to multiple developmental and environmental cues. Hormones are small endogenous signalling molecules which are fundamental to this phenotypic plasticity. Post-translational modifications of proteins are a central feature of the signal transduction pathways that regulate gene transcription in response to hormones. Modifications that affect the function of transcriptional regulators may also serve as a mechanism to incorporate multiple signals, mediate cross-talk, and modulate specific responses. This review discusses recent research that suggests hormone-responsive transcription factors are subject to multiple modifications which imply an additional level of regulation conferred by enzymes that mediate specific modifications, such as phosphorylation, ubiquitination, SUMOylation, and S-nitrosylation. These modifications can affect protein stability, sub-cellular localization, interactions with co-repressors and activators, and DNA binding. The focus here is on direct cross-talk involving transcription factors downstream of auxin, brassinosteroid, and gibberellin signalling. However, many of the concepts discussed are more broadly relevant to questions of how plants can modify their growth by regulating subsets of genes in response to multiple cues. |
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| AbstractList | Plants exhibit a high level of developmental plasticity and growth is responsive to multiple developmental and environmental cues. Hormones are small endogenous signalling molecules which are fundamental to this phenotypic plasticity. Post-translational modifications of proteins are a central feature of the signal transduction pathways that regulate gene transcription in response to hormones. Modifications that affect the function of transcriptional regulators may also serve as a mechanism to incorporate multiple signals, mediate cross-talk, and modulate specific responses. This review discusses recent research that suggests hormone-responsive transcription factors are subject to multiple modifications which imply an additional level of regulation conferred by enzymes that mediate specific modifications, such as phosphorylation, ubiquitination, SUMOylation, and S-nitrosylation. These modifications can affect protein stability, sub-cellular localization, interactions with co-repressors and activators, and DNA binding. The focus here is on direct cross-talk involving transcription factors downstream of auxin, brassinosteroid, and gibberellin signalling. However, many of the concepts discussed are more broadly relevant to questions of how plants can modify their growth by regulating subsets of genes in response to multiple cues. Plants exhibit a high level of developmental plasticity and growth is responsive to multiple developmental and environmental cues. Hormones are small endogenous signalling molecules which are fundamental to this phenotypic plasticity. Post-translational modifications of proteins are a central feature of the signal transduction pathways that regulate gene transcription in response to hormones. Modifications that affect the function of transcriptional regulators may also serve as a mechanism to incorporate multiple signals, mediate cross-talk, and modulate specific responses. This review discusses recent research that suggests hormone-responsive transcription factors are subject to multiple modifications which imply an additional level of regulation conferred by enzymes that mediate specific modifications, such as phosphorylation, ubiquitination, SUMOylation, and S-nitrosylation. These modifications can affect protein stability, sub-cellular localization, interactions with co-repressors and activators, and DNA binding. The focus here is on direct cross-talk involving transcription factors downstream of auxin, brassinosteroid, and gibberellin signalling. However, many of the concepts discussed are more broadly relevant to questions of how plants can modify their growth by regulating subsets of genes in response to multiple cues.Plants exhibit a high level of developmental plasticity and growth is responsive to multiple developmental and environmental cues. Hormones are small endogenous signalling molecules which are fundamental to this phenotypic plasticity. Post-translational modifications of proteins are a central feature of the signal transduction pathways that regulate gene transcription in response to hormones. Modifications that affect the function of transcriptional regulators may also serve as a mechanism to incorporate multiple signals, mediate cross-talk, and modulate specific responses. This review discusses recent research that suggests hormone-responsive transcription factors are subject to multiple modifications which imply an additional level of regulation conferred by enzymes that mediate specific modifications, such as phosphorylation, ubiquitination, SUMOylation, and S-nitrosylation. These modifications can affect protein stability, sub-cellular localization, interactions with co-repressors and activators, and DNA binding. The focus here is on direct cross-talk involving transcription factors downstream of auxin, brassinosteroid, and gibberellin signalling. However, many of the concepts discussed are more broadly relevant to questions of how plants can modify their growth by regulating subsets of genes in response to multiple cues. |
| Author | Hill, Kristine |
| Author_xml | – sequence: 1 givenname: Kristine orcidid: 0000-0002-3429-5818 surname: Hill fullname: Hill, Kristine email: tinehill@gmail.com organization: Plant Sciences Division and Centre for Plant Integrative Biology, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK tinehill@gmail.com |
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| Copyright | The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissions@oup.com. |
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| Keywords | gibberellin Auxin signalling transcription factors brassinosteroid signalling transcriptional output hormone cross-talk post-translational modifications DELLA |
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| SubjectTerms | Brassinosteroids - metabolism Gene Expression Regulation, Plant Gibberellins - metabolism Indoleacetic Acids - metabolism Plant Growth Regulators - metabolism Signal Transduction Transcription Factors - genetics Transcription Factors - metabolism |
| Title | Post-translational modifications of hormone-responsive transcription factors: the next level of regulation |
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