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Author Spotlight: MAPP Protocol – Advancing Glycan Analysis
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Next-Generation Glycan Microarray Enabled by DNA-Coded Glycan Library and Next-Generation Sequencing Technology.

Maomao Yan, Yuyang Zhu, Xueyun Liu

  • 1College of Life Sciences and Agriculture , University of New Hampshire , Durham , New Hampshire 03824 , United States.

Analytical Chemistry
|June 13, 2019
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Summary
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A novel next-generation glycan microarray (NGGM) uses DNA coding for glycan analysis. This method enables high-throughput study of glycan-protein interactions and binding to intact cells.

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Area of Science:

  • Carbohydrate Chemistry
  • Glycobiology
  • Biotechnology

Background:

  • Glycan interactions are crucial for cell adhesion and host-pathogen dynamics.
  • Current glycan microarray technology is limited by cost, labor, and suitability for intact cell assays.

Purpose of the Study:

  • To develop a next-generation glycan microarray (NGGM) overcoming limitations of current technologies.
  • To enable high-throughput and intact cell analysis of glycan-protein interactions.

Main Methods:

  • Developed NGGM using artificial DNA coding for glycan structures.
  • Utilized next-generation sequencing (NGS) to decode DNA sequences representing bound glycans.
  • Assayed glycan-binding protein (GBP) interactions in solution phase.

Main Results:

  • NGGM data showed consistency with traditional slide-based glycan microarrays.
  • Demonstrated NGGM's applicability to studying glycan binding with intact cells.
  • The DNA-coded approach allows for quantitative analysis of relative binding specificities.

Conclusions:

  • NGGM offers a powerful, automatable, and high-throughput alternative to current glycan microarray methods.
  • The solution-phase assay format of NGGM expands possibilities for studying complex biological interactions, including those with intact cells.