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[A quantitative method for determining lectin activity on microplates].
1A.V. Palladin Institute of Biochemistry of National Academy of Sciences, Ukraine.
Ukrains'Kyi Biokhimichnyi Zhurnal (1999 )
|May 23, 2000
Summary
This study presents a modified lectin assay using biotinylated lectins for broader ligand compatibility. The enhanced assay is simple, sensitive, and accurately determines lectin-carbohydrate binding affinities.
Area of Science:
- Biochemistry
- Analytical Chemistry
- Glycobiology
Context:
- Lectin assays are crucial for studying carbohydrate-protein interactions.
- Existing methods may have limitations in ligand diversity and sensitivity.
- A quantitative solid-phase microtiter plate lectin assay was previously established.
Purpose:
- To modify a known quantitative solid-phase microtiter plate lectin assay.
- To enable the use of a broader spectrum of lectin ligands, including glycopeptides and peptides.
- To optimize reagent concentrations and incubation times for improved performance.
Summary:
- A modified lectin assay utilizing biotinylated lectins and an ExtrAvidin-alkaline phosphatase conjugate was developed.
- Optimal reagent concentrations and incubation times were determined.
- Dissociation constants (Kdiss) for Concanavalin A with specific monosaccharides were accurately measured, aligning with known specificities.
Impact:
- Provides a simple, sensitive, and versatile method for lectin-carbohydrate binding analysis.
- Facilitates the study of complex biological interactions involving various glycan structures.
- Enhances the toolkit for glycomics and drug discovery research.