scholarly journals Cytoplasmic Degradation of theArabidopsisTranscription Factor ABSCISIC ACID INSENSITIVE 5 Is Mediated by the RING-type E3 Ligase KEEP ON GOING

2013 ◽  
Vol 288 (28) ◽  
pp. 20267-20279 ◽  
Author(s):  
Hongxia Liu ◽  
Sophia L. Stone
Keyword(s):  
Abscisic Acid ◽  
E3 Ligase ◽  
Ring Type

The RanBP2 SUMO E3 ligase is neither HECT- nor RING-type

2004 ◽  
Vol 11 (10) ◽  
pp. 984-991 ◽  
Author(s):  
Andrea Pichler ◽  
Puck Knipscheer ◽  
Hisato Saitoh ◽  
Titia K Sixma ◽  
Frauke Melchior
Keyword(s):  
E3 Ligase ◽  
Ring Type ◽  
Sumo E3 Ligase

scholarly journals Sumoylation of ABI5 by the Arabidopsis SUMO E3 ligase SIZ1 negatively regulates abscisic acid signaling

2009 ◽  
Vol 106 (13) ◽  
pp. 5418-5423 ◽  
Author(s):  
K. Miura ◽  
J. Lee ◽  
J. B. Jin ◽  
C. Y. Yoo ◽  
T. Miura ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
E3 Ligase ◽  
Abscisic Acid Signaling ◽  
Sumo E3 Ligase

scholarly journals The Arabidopsis F-box E3 ligase RIFP1 plays a negative role in abscisic acid signalling by facilitating ABA receptor RCAR3 degradation

2015 ◽  
Vol 39 (3) ◽  
pp. 571-582 ◽  
Author(s):  
Ying Li ◽  
Liang Zhang ◽  
Dekuan Li ◽  
Zhibin Liu ◽  
Jianmei Wang ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
E3 Ligase ◽  
Negative Role ◽  
Aba Receptor

scholarly journals A RING-type E3 ligase controls anther dehiscence by activating the jasmonate biosynthetic pathway geneDEFECTIVE IN ANTHER DEHISCENCE1in Arabidopsis

2013 ◽  
Vol 74 (2) ◽  
pp. 310-327 ◽  
Author(s):  
Yan-Jhu Peng ◽  
Ching-Fang Shih ◽  
Jun-Yi Yang ◽  
Choon-Meng Tan ◽  
Wei-Han Hsu ◽  
...  
Keyword(s):  
Biosynthetic Pathway ◽  
E3 Ligase ◽  
Anther Dehiscence ◽  
Ring Type

scholarly journals The ARRE RING-Type E3 Ubiquitin Ligase Negatively Regulates Cuticular Wax Biosynthesis in Arabidopsis thaliana by Controlling ECERIFERUM1 and ECERIFERUM3 Protein Levels

2021 ◽  
Vol 12 ◽  
Author(s):  
Shuang Liu ◽  
Meixuezi Tong ◽  
Lifang Zhao ◽  
Xin Li ◽  
Ljerka Kunst
Keyword(s):  
Ubiquitin Ligase ◽  
Uv Light ◽  
E3 Ubiquitin Ligase ◽  
E3 Ligase ◽  
Cuticular Wax ◽  
26S Proteasome ◽  
Covalent Attachment ◽  
Wax Deposition ◽  
E3 Ligases ◽  
Ring Type

The outer epidermal cell walls of plant shoots are covered with a cuticle, a continuous lipid structure that provides protection from desiccation, UV light, pathogens, and insects. The cuticle is mostly composed of cutin and cuticular wax. Cuticular wax synthesis is synchronized with surface area expansion during plant development and is associated with plant responses to biotic and abiotic stresses. Cuticular wax deposition is tightly regulated by well-established transcriptional and post-transcriptional regulatory mechanisms, as well as post-translationally via the ubiquitin-26S proteasome system (UPS). The UPS is highly conserved in eukaryotes and involves the covalent attachment of polyubiquitin chains to the target protein by an E3 ligase, followed by the degradation of the modified protein by the 26S proteasome. A large number of E3 ligases are encoded in the Arabidopsis genome, but only a few have been implicated in the regulation of cuticular wax deposition. In this study, we have conducted an E3 ligase reverse genetic screen and identified a novel RING-type E3 ubiquitin ligase, AtARRE, which negatively regulates wax biosynthesis in Arabidopsis. Arabidopsis plants overexpressing AtARRE exhibit glossy stems and siliques, reduced fertility and fusion between aerial organs. Wax load and wax compositional analyses of AtARRE overexpressors showed that the alkane-forming branch of the wax biosynthetic pathway is affected. Co-expression of AtARRE and candidate target proteins involved in alkane formation in both Nicotiana benthamiana and stable Arabidopsis transgenic lines demonstrated that AtARRE controls the levels of wax biosynthetic enzymes ECERIFERUM1 (CER1) and ECERIFERUM3 (CER3). CER1 has also been confirmed to be a ubiquitination substrate of the AtARRE E3 ligase by an in vivo ubiquitination assay using a reconstituted Escherichia coli system. The AtARRE gene is expressed throughout the plant, with the highest expression detected in fully expanded rosette leaves and oldest stem internodes. AtARRE gene expression can also be induced by exposure to pathogens. These findings reveal that wax biosynthesis in mature plant tissues and in response to pathogen infection is controlled post-translationally.

Molecular characterization of a RING E3 ligase SbHCI1 in sorghum under heat and abscisic acid stress

Planta ◽  
2020 ◽  
Vol 252 (5) ◽  
Author(s):  
Sung Don Lim ◽  
Dae Gyeom Oh ◽  
Yong Chan Park ◽  
Cheol Seong Jang
Keyword(s):  
Abscisic Acid ◽  
Molecular Characterization ◽  
Acid Stress ◽  
E3 Ligase ◽  
Ring E3 Ligase ◽  
Ring E3
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