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High-Throughput N-Glycan Analysis with Rapid Magnetic Bead-Based Sample Preparation.

Marton Szigeti¹, Andras Guttman^2,3,4

¹Horvath Csaba Laboratory of Bioseparation Sciences, University of Debrecen, Debrecen, Hungary.

Methods in Molecular Biology (Clifton, N.J.)

|October 16, 2016

Summary

Magnetic beads streamline N-glycan analysis for therapeutic glycoproteins, enhancing drug efficacy and enabling biomarker discovery for early diagnostics. This method offers a high-throughput solution for complex glycan profiling.

Keywords:

Capillary electrophoresis Fluorophore labeling Magnetic bead N-glycan analysis

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A Quantitative Glycomics and Proteomics Combined Purification Strategy

A Quantitative Glycomics and Proteomics Combined Purification Strategy

Published on: March 8, 2016

Area of Science:

Biochemistry and Biotechnology
Analytical Chemistry
Pharmaceutical Sciences

Background:

Therapeutic glycoprotein analysis is crucial for drug efficacy, as N-glycans impact half-life, immunogenicity, and stability.
Glycoprotein analysis is vital in the multibillion-dollar biopharmaceutical industry and for discovering disease biomarkers.
Current N-glycan profiling methods require efficient, high-throughput sample preparation and analysis techniques.

Purpose of the Study:

To present a detailed protocol for magnetic bead-based N-glycan sample preparation.
To demonstrate rapid capillary electrophoresis-laser induced fluorescence detection (CE-LIF) analysis of prepared samples.
To highlight the application of this method for analyzing IgG glycans.

Main Methods:

N-glycans were released from glycoproteins using endoglycosidase PNGase F.
Released N-glycans were labeled with aminopyrenetrisulfonate (APTS) dye.
Magnetic microparticles were used for efficient glycan capture and purification, followed by CE-LIF analysis.

Main Results:

Magnetic bead-based sample preparation enabled fast, automated N-glycan isolation and purification.
The method effectively removed excess APTS dye.
Optimized CE-LIF provided rapid separation of APTS-labeled IgG glycans.

Conclusions:

Magnetic bead technology offers a versatile and high-throughput approach for N-glycan profiling.
This method facilitates efficient sample preparation for both individual and 96-well plate formats.
The combined technique provides a powerful tool for therapeutic glycoprotein analysis and biomarker discovery.