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Related Experiment Videos

Evanescent-field fluorescence-assisted lectin microarray: a new strategy for glycan profiling.

Atsushi Kuno1, Noboru Uchiyama, Shiori Koseki-Kuno

  • 1Research Center for Glycoscience (RCG), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 2; Tsukuba, Ibaraki 305-8568, Japan.

Nature Methods
|November 10, 2005
PubMed
Summary

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A novel lectin microarray enables sensitive, real-time glycan profiling. This versatile method allows quantitative detection of lectin-carbohydrate interactions, advancing the field of glycomics.

Area of Science:

  • Carbohydrate Chemistry
  • Biochemistry
  • Molecular Biology

Background:

  • Glycans play crucial roles in biological processes, necessitating advanced glycomics research.
  • High-throughput glycan profiling is essential in the postproteomics era.
  • A versatile method for comprehensive glycan profiling is currently lacking.

Purpose of the Study:

  • To develop a versatile and sensitive method for glycan profiling.
  • To enable real-time observation of lectin-carbohydrate interactions.
  • To establish a new paradigm for glycomics research.

Main Methods:

  • Development of a novel microarray procedure utilizing evanescent-field fluorescence detection.
  • Immobilization of 39 distinct lectins on the microarray.

Related Experiment Videos

  • Quantitative detection of lectin-carbohydrate interactions using fluorescently labeled glycoproteins, glycopeptides, and oligosaccharides.

    • Main Results:

    • The microarray allows sensitive, real-time monitoring of multiple lectin-carbohydrate interactions under equilibrium conditions.
    • Quantitative detection of weak lectin-carbohydrate interactions (dissociation constant, K(d) > 10(-6) M) was achieved.
    • Specific signal patterns were derived for various labeled glycans, consistent with known specificities.

    Conclusions:

    • The developed lectin microarray offers a versatile platform for glycan profiling.
    • This method provides sensitive and quantitative detection of glycan-lectin interactions.
    • The lectin microarray is poised to establish a new paradigm in the field of glycomics.