Related Experiment Video
Updated: Jul 24, 2025

Identification of Post-translational Modifications of Plant Protein Complexes
Published on: February 22, 2014
Protein phosphorylation: A molecular switch in plant signaling
Wen Jie Zhang1, Yewei Zhou2, Yi Zhang2
1Plant Synthetic Biology Center, Haixia Institute of Science and Technology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China; State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong, China.
Protein phosphorylation is vital for plant signaling in development and stress adaptation. Specific phosphorylation patterns, or phosphocodes, control diverse protein functions and downstream signaling specificity.
Area of Science:
- Plant biology
- Molecular signaling
- Biochemistry
Background:
- Protein phosphorylation is a key post-translational modification regulating plant signaling pathways.
- These pathways are essential for plant development and adaptation to environmental stresses.
- Understanding phosphorylation dynamics is critical for deciphering plant responses.
Purpose of the Study:
- To summarize recent findings on critical phosphorylation events in plant hormone signaling and stress responses.
- To highlight how distinct phosphorylation patterns (phosphocodes) dictate protein function and signaling specificity.
Main Methods:
- Literature review of recent research findings.
- Analysis of key phosphorylation events in plant signaling cascades.
- Focus on hormone signaling and stress response pathways.
Main Results:
- Identified crucial phosphorylation events in typical plant hormone signaling pathways.
- Demonstrated the role of specific phosphorylation patterns in regulating protein function.
- Highlighted how phosphocodes determine downstream signaling specificity.
Conclusions:
- Protein phosphorylation is central to plant development and environmental adaptation.
- Distinct phosphocodes on proteins lead to diverse biological functions and specific downstream signaling outcomes.
Related Concept Videos
Cell Signaling in Plants
Phosphorylation
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
Protein Kinases and Phosphatases
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Amplifying Signals via Enzymatic Cascade
Photoreceptors and Plant Responses to Light
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...

