» Articles » PMID: 17397137

Carbohydrate Structural Isomers Analyzed by Sequential Mass Spectrometry

Overview
Journal Anal Chem
Specialty Chemistry
Date 2007 Apr 3
PMID 17397137
Citations 62
Authors
Affiliations
Soon will be listed here.
Abstract

Consistent with the goals of a comprehensive carbohydrate sequencing strategy, we extend earlier reports to include the characterization of structural (constitutional) isomers. Protocols were developed around ion trap instrumentation providing sequential mass spectrometry (MSn) and supported with automation and related computational tools. These strategies have been built on the principle that for a single structure all product spectra upon sequential fragmentation are reproducible and each stage represents a rational spectrum of its precursor; i.e., all major fragments should be accounted for. Anomalous ions at any stage are clues indicating the presence of structural isomers. Gas-phase isolation and subsequent fragmentation of such ions provide an opportunity to specifically resolve selected structures for their detailed characterization. Importantly, some isomers were not detected following MS2 and required multiple (MSn>2) stages for their characterization. Derivatization remains critical to position substructures in a glycan array since product ions carry fragmentation "scars" throughout the MSn tree. Equally as important are the pathway relationships between each stage and the greater yield of fragments with the smaller number of oscillators. Applications were directed to the structural isomers in ovalbumin and IgG, where, in the latter case, several previously unreported glycans were detected. Procedures were supported with bioinformatics tools for assimilating structure from the MSn data sets.

Citing Articles

High-Throughput Liquid Chromatographic Analysis Using a Segmented Flow Injector with a 1 s Cycle Time.

Makey D, Diehl R, Xin Y, Murray B, Stoll D, Ruotolo B Anal Chem. 2023; 95(46):17028-17036.

PMID: 37943345 PMC: 11027085. DOI: 10.1021/acs.analchem.3c03719.


glycan sequencing by electronic excitation dissociation MS-guided MS analysis on an Omnitrap-Orbitrap hybrid instrument.

Wei J, Papanastasiou D, Kosmopoulou M, Smyrnakis A, Hong P, Tursumamat N Chem Sci. 2023; 14(24):6695-6704.

PMID: 37350811 PMC: 10284134. DOI: 10.1039/d3sc00870c.


Statistical Framework for Identifying Differences in Similar Mass Spectra: Expanding Possibilities for Isomer Identification.

Wu H, Riggs D, Lyon Y, Julian R Anal Chem. 2023; 95(17):6996-7005.

PMID: 37128750 PMC: 10157605. DOI: 10.1021/acs.analchem.3c00495.


Mass Spectrometry-Based Methods for Immunoglobulin G N-Glycosylation Analysis.

Habazin S, Stambuk J, Simunovic J, Keser T, Razdorov G, Novokmet M Exp Suppl. 2021; 112:73-135.

PMID: 34687008 DOI: 10.1007/978-3-030-76912-3_3.


Mass Spectrometry-Based Techniques to Elucidate the Sugar Code.

Grabarics M, Lettow M, Kirschbaum C, Greis K, Manz C, Pagel K Chem Rev. 2021; 122(8):7840-7908.

PMID: 34491038 PMC: 9052437. DOI: 10.1021/acs.chemrev.1c00380.


References
1.
Ciucanu I, Costello C . Elimination of oxidative degradation during the per-O-methylation of carbohydrates. J Am Chem Soc. 2003; 125(52):16213-9. DOI: 10.1021/ja035660t. View

2.
Harvey D, Wing D, Kuster B, Wilson I . Composition of N-linked carbohydrates from ovalbumin and co-purified glycoproteins. J Am Soc Mass Spectrom. 2000; 11(6):564-71. DOI: 10.1016/S1044-0305(00)00122-7. View

3.
Gleeson P, SCHACHTER H . Control of glycoprotein synthesis. J Biol Chem. 1983; 258(10):6162-73. View

4.
Kameyama A, Kikuchi N, Nakaya S, Ito H, Sato T, Shikanai T . A strategy for identification of oligosaccharide structures using observational multistage mass spectral library. Anal Chem. 2005; 77(15):4719-25. DOI: 10.1021/ac048350h. View

5.
Zhang H, Singh S, Reinhold V . Congruent strategies for carbohydrate sequencing. 2. FragLib: an MSn spectral library. Anal Chem. 2005; 77(19):6263-70. PMC: 1440921. DOI: 10.1021/ac050725r. View