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A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples
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N-glycoprotein enrichment by lectin affinity chromatography.

Eliel Ruiz-May1, Carmen Catalá, Jocelyn K C Rose

  • 1Department of Plant Biology, Cornell University, Ithaca, NY, USA.

Methods in Molecular Biology (Clifton, N.J.)
|October 19, 2013
PubMed
Summary

Lectins, proteins binding sugars, enable glycoprotein enrichment from plant tissues. This method aids in studying plant proteomes using mass spectrometry (MS).

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Area of Science:

  • Proteomics
  • Glycobiology
  • Plant Science

Background:

  • Proteins with attached sugar chains (glycoproteins) are crucial in biological processes.
  • Lectins are proteins that specifically bind to these sugar structures.
  • Lectin affinity chromatography is a key technique for isolating glycoproteins.

Purpose of the Study:

  • To outline a method for enriching glycoproteins from plant tissues.
  • To facilitate subsequent analysis of plant proteomes, particularly those from the secretory pathway and cell wall.
  • To prepare samples for identification using mass spectrometry (MS) or other analytical methods.

Main Methods:

  • Utilizing lectin affinity chromatography to capture glycoproteins from complex plant samples.
  • Employing lectins with differential binding specificities for various glycan structures.
  • Developing a strategy for sample preparation from bulk plant tissues.

Main Results:

  • Successful enrichment of glycoproteins from plant tissues was achieved.
  • The method allows for the isolation of glycoproteins for further characterization.
  • The enriched samples are suitable for downstream analyses like mass spectrometry.

Conclusions:

  • Lectin affinity chromatography is an effective strategy for glycoprotein enrichment in plant science.
  • This approach enhances the study of plant glycoproteins, especially in the secretory pathway and cell wall.
  • The outlined method provides a foundation for detailed glycoproteome analysis in plants.