Analysis of Native and Permethylated N-Glycan Isomers Using MGC-LC-MS Techniques

Overview

Journal Methods Mol Biol

Specialty Molecular Biology

Date 2024 Feb 5

PMID 38315368

Authors

Andrew I Bennett

Oluwatosin Daramola

Md Mostofa Al Amin Bhuiyan

Vishal Sandilya

Yehia Mechref

Affiliations

Soon will be listed here.

Abstract

Glycosylation is an important post-translational modification that affects many critical cellular functions such as adhesion, signaling, protein stability, and function, among others. Abnormal glycosylation has been linked to many diseases. As such, the investigation of glycans and their roles in disease pathway and progression is important. Glycan analysis can be challenging, however, due to such factors as the heterogeneity of glycans and isomers as well as the poor ionization efficiency provided by mass spectrometry analyses. This chapter presents efficient methods that overcome these and other challenges for the analysis of native and permethylated N-glycan isomers in biological samples. Instructions regarding the packing of the MGC column, the N-glycan sample prep, and the LC-MS conditions are also provided.

Citing Articles

LC-MS/MS of isomeric N-and O-glycopeptides on mesoporous graphitized carbon column.

Daramola O, Gautam S, Gutierrez Reyes C, Fowowe M, Onigbinde S, Nwaiwu J Anal Chim Acta. 2024; 1317:342907.

PMID: 39030008 PMC: 11789930. DOI: 10.1016/j.aca.2024.342907.

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