Analysis of oligosaccharides by microbore high-performance liquid chromatography

Area of Science:

• Biochemistry
• Analytical Chemistry
• Glycomics

Background:

• Glycan analysis is crucial for understanding protein function.
• Traditional methods for glycan structure identification are often time-consuming.
• Efficient analysis of glycans from both natural and recombinant proteins is needed.

Purpose of the Study:

• To develop a faster and more efficient method for glycan analysis.
• To enable primary structure identification of 2-aminoacridone (2-AMAC)-derivatized glycans.
• To streamline the process of glycomics research.

Main Methods:

• Utilized a 1-mm microbore hydrophilic interaction column for glycan separation.
• Employed 2-aminoacridone (2-AMAC) derivatization for glycans released from proteins.
• Performed High-Performance Liquid Chromatography (HPLC) with fluorescence and mass spectrometric detection.
• Applied enzymatic digestion for glycan structure confirmation when necessary.

Main Results:

• Successfully separated 2-AMAC-derivatized glycan mixtures.
• Achieved primary structure identification of glycans using HPLC, fluorescence, and mass spectrometry.
• Demonstrated the utility of enzymatic digestion for structural confirmation.
• Showcased a significantly faster analytical strategy compared to conventional techniques.

Conclusions:

• The developed method offers a rapid approach to glycan analysis.
• This technique simplifies the identification of glycan structures from protein sources.
• The strategy accelerates glycomics research, particularly for naturally occurring and recombinant proteins.