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Sugarcane cystatins: From discovery to biotechnological applications
Priscila Yumi Tanaka Shibao1, Célio Dias Santos-Júnior2, Adelita Carolina Santiago3
1Department of Genetics and Evolution, Federal University of São Carlos, São Carlos, Brazil; Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Aachen, Germany.
International Journal of Biological Macromolecules
|December 7, 2020
Summary
Sugarcane cystatins (CaneCPIs) are plant-derived cysteine protease inhibitors. These six identified CaneCPIs inhibit human proteases implicated in cancer and other diseases, showing potential in agriculture and medicine.
Area of Science:
- Biochemistry
- Molecular Biology
- Plant Science
Background:
- Phytocystatins are plant-produced cysteine protease inhibitors.
- Six sugarcane cystatins (CaneCPI-1 to CaneCPI-6) were identified, cloned, and expressed.
- These inhibitors target proteases involved in human pathologies.
Purpose of the Study:
- To provide a comprehensive review of sugarcane cystatins.
- To analyze their phylogenetic relationships, genomic organization, and structural insights.
- To evaluate their inhibitory potential against various cysteine proteases and their applications.
Main Methods:
- Bioinformatic analysis of sugarcane EST project database.
- Cloning, recombinant expression in various systems, and protein characterization.
- In vitro inhibition assays against human and pathogen cysteine proteases.
- Protein-protein docking simulations.
Main Results:
- Detailed phylogenetic analysis, chromosomal localization, and genomic organization of sugarcane cystatins.
- Recombinant CaneCPIs demonstrated inhibitory activity against human cathepsins B and L, and other cysteine proteases.
- Protein docking revealed specific interactions of CaneCPI-5 with human cathepsin B active site.
- Potential applications in agriculture and health were highlighted.
Conclusions:
- Sugarcane cystatins represent a promising class of protease inhibitors.
- Their diverse inhibitory profiles suggest broad applicability.
- Further research can leverage these findings for therapeutic and agricultural advancements.
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