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In-vitro Reconstitution of Bacterial Ubiquitination and VCP/p97-mediated Elimination

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Ubiquitination in NB-LRR-mediated immunity.

Yu Ti Cheng¹, Xin Li

¹Michael Smith Laboratories and the Department of Botany, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.

Current Opinion in Plant Biology

|April 17, 2012

Summary

Ubiquitination regulates plant immunity by controlling protein stability. This review details how ubiquitination pathway components impact Nucleotide-binding Leucine-rich Repeat (NB-LRR) R protein-mediated plant defense responses.

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Identification of Post-translational Modifications of Plant Protein Complexes

Identification of Post-translational Modifications of Plant Protein Complexes

Published on: February 22, 2014

Area of Science:

Plant Biology
Molecular Biology
Immunology

Background:

Ubiquitination is a common post-translational modification regulating protein stability and cellular signaling.
Plant immune responses rely on intricate signaling networks, with protein turnover playing a crucial role.
Nucleotide-binding Leucine-rich Repeat (NB-LRR) R proteins are key components of plant immunity.

Purpose of the Study:

To review the recent advancements in understanding the role of ubiquitination in plant defense.
To elucidate the involvement of ubiquitination pathway components in NB-LRR R protein-mediated immunity.

Main Methods:

Literature review of recent research on ubiquitination and plant immunity.
Analysis of the interplay between ubiquitination machinery and NB-LRR R proteins.

Main Results:

Ubiquitination critically regulates the stability and function of numerous plant immune regulators.
Specific components of the ubiquitination pathway are essential for the activation and signaling of NB-LRR R proteins.
Degradation or modification of immune regulators via ubiquitination fine-tunes plant defense.

Conclusions:

Ubiquitination is a pivotal regulatory mechanism in plant immunity, particularly for NB-LRR R protein function.
Targeting ubiquitination pathways offers potential strategies for enhancing plant disease resistance.