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Concept, strategy and realization of lectin-based glycan profiling
1Research Center for Medical Glycoscience, National Institute of Advanced Industrial Science and Technology, AIST Central-2, 1-1-1, Umezono, Tsukuba, Ibaraki 305-8568, Japan. jun-hirabayashi@aist.go.jp
Journal of Biochemistry
|April 9, 2008
Summary
Lectins, carbohydrate-binding proteins, are valuable tools for glycan profiling in proteomics. Despite past underestimation, their broad specificity is ideal for comprehensive glycan analysis, advancing biomarker discovery.
Area of Science:
- Biochemistry
- Proteomics
- Glycobiology
Background:
- Lectins are diverse carbohydrate-binding proteins found in all organisms producing glycans.
- Historically underestimated in proteomics compared to antibodies due to lower affinity and broader specificity.
- Glycomics has highlighted the utility of lectin properties for comprehensive glycan profiling.
Purpose of the Study:
- To discuss the critical aspects of using lectins as probes in glycan analysis.
- To present strategies and methods for advancing glycan profiling technologies.
- To highlight the importance of glycosylation in biomarker discovery beyond protein expression levels.
Main Methods:
- Frontal Affinity Chromatography (FAC)
- Lectin Microarray technology
- Glycoprotein enrichment and glycan profiling techniques
Main Results:
- Lectins offer unique advantages for 'profiling' a wide range of glycan ligands.
- Recent trends in proteomics increasingly utilize lectins for glycoprotein enrichment and glycan profiling.
- The development of novel methodologies like FAC and lectin microarrays enhances glycan analysis capabilities.
Conclusions:
- Lectins are powerful tools for glycan profiling and biomarker discovery, complementing traditional proteomics.
- Understanding lectin-carbohydrate interactions is crucial for advancing glycomics.
- New methodologies are essential for overcoming limitations and expanding the application of lectins in biological research.
