The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress Signaling
Ubiquitin is a small, highly conserved, ubiquitously expressed eukaryotic protein with immensely important and diverse regulatory functions. A well-studied function of ubiquitin is its role in selective proteolysis by the ubiquitin-proteasome system (UPS). The UPS has emerged as an integral player i...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2014-04-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00135/full |
| _version_ | 1818178206159601664 |
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| author | Stone L Sophia |
| author_facet | Stone L Sophia |
| author_sort | Stone L Sophia |
| collection | DOAJ |
| description | Ubiquitin is a small, highly conserved, ubiquitously expressed eukaryotic protein with immensely important and diverse regulatory functions. A well-studied function of ubiquitin is its role in selective proteolysis by the ubiquitin-proteasome system (UPS). The UPS has emerged as an integral player in plant response and adaptation to environmental stresses such as drought, salinity, cold and nutrient deprivation. The UPS has also been shown to influence the production and signal transduction of stress-related hormones such as abscisic acid. Understanding UPS function has centered mainly on defining the role of E3 ubiquitin ligases, which are the substrate-recruiting component of the ubiquitination pathway. The recent identification of stress signaling/regulatory proteins that are the subject of ubiquitin-dependent degradation has increased our knowledge of how the UPS facilitate responses to adverse environmental conditions. A brief overview is provided on role of the UPS in modulating protein stability during abiotic stress signaling. E3 ubiquitin ligases for which stress-related substrate proteins have been identified are discussed. |
| first_indexed | 2024-12-11T20:44:17Z |
| format | Article |
| id | doaj.art-3e0a7f22e43b4d508486d006f047d563 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-11T20:44:17Z |
| publishDate | 2014-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-3e0a7f22e43b4d508486d006f047d5632022-12-22T00:51:25ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2014-04-01510.3389/fpls.2014.0013580791The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress SignalingStone L Sophia0Dalhousie UniversityUbiquitin is a small, highly conserved, ubiquitously expressed eukaryotic protein with immensely important and diverse regulatory functions. A well-studied function of ubiquitin is its role in selective proteolysis by the ubiquitin-proteasome system (UPS). The UPS has emerged as an integral player in plant response and adaptation to environmental stresses such as drought, salinity, cold and nutrient deprivation. The UPS has also been shown to influence the production and signal transduction of stress-related hormones such as abscisic acid. Understanding UPS function has centered mainly on defining the role of E3 ubiquitin ligases, which are the substrate-recruiting component of the ubiquitination pathway. The recent identification of stress signaling/regulatory proteins that are the subject of ubiquitin-dependent degradation has increased our knowledge of how the UPS facilitate responses to adverse environmental conditions. A brief overview is provided on role of the UPS in modulating protein stability during abiotic stress signaling. E3 ubiquitin ligases for which stress-related substrate proteins have been identified are discussed.http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00135/fullAbscisic AcidUbiquitinationabiotic stressProtein degradation26S proteasomeE3 ubiquitin ligase |
| spellingShingle | Stone L Sophia The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress Signaling Frontiers in Plant Science Abscisic Acid Ubiquitination abiotic stress Protein degradation 26S proteasome E3 ubiquitin ligase |
| title | The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress Signaling |
| title_full | The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress Signaling |
| title_fullStr | The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress Signaling |
| title_full_unstemmed | The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress Signaling |
| title_short | The Role of Ubiquitin and the 26S Proteasome in Plant Abiotic Stress Signaling |
| title_sort | role of ubiquitin and the 26s proteasome in plant abiotic stress signaling |
| topic | Abscisic Acid Ubiquitination abiotic stress Protein degradation 26S proteasome E3 ubiquitin ligase |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00135/full |
| work_keys_str_mv | AT stonelsophia theroleofubiquitinandthe26sproteasomeinplantabioticstresssignaling AT stonelsophia roleofubiquitinandthe26sproteasomeinplantabioticstresssignaling |