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Glutathione-mediated detoxification systems in plants
D P Dixon1, L Cummins, D J Cole
1Department of Biological Sciences, University of Durham, Durham DH1 3LE, UK.
Current Opinion in Plant Biology
|March 6, 1999
Summary
Plant glutathione-dependent enzymes, especially glutathione transferases, are key for detoxifying compounds. Research is revealing their diverse roles in both foreign and internal plant metabolism, aided by structural and molecular studies.
Area of Science:
- Plant biochemistry
- Enzymology
- Molecular biology
Background:
- Diverse glutathione-dependent enzymes exist in plants.
- These enzymes potentially detoxify xenobiotic and endogenous compounds.
- Glutathione transferases (GSTs) are a focus for xenobiotic metabolism research.
Purpose of the Study:
- To characterize the role of plant glutathione transferases in xenobiotic metabolism.
- To explore potential roles of GSTs in endogenous plant metabolism.
- To gain insights into the function and classification of these enzymes.
Main Methods:
- Structural elucidation of glutathione transferases.
- Analysis of molecular diversity within GSTs.
- Substrate specificity studies for GSTs.
Main Results:
- GSTs play a significant role in xenobiotic detoxification in plants.
- Emerging evidence suggests GSTs are involved in endogenous metabolic pathways.
- Structural and molecular data are clarifying GST function and classification.
Conclusions:
- Plant glutathione transferases are versatile enzymes with dual roles in detoxification and endogenous metabolism.
- Structural and molecular insights are crucial for understanding GST diversity and function.
- Further research on GSTs will enhance our understanding of plant metabolic processes.