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Current Proteomics

Editor-in-Chief

ISSN (Print): 1570-1646
ISSN (Online): 1875-6247

Mass Spectrometry in the Elucidation of the Glycoproteome of Bacterial Pathogens

Author(s): Robert L.J. Graham and Sonja Hess

Volume 7, Issue 1, 2010

Page: [57 - 81] Pages: 25

DOI: 10.2174/157016410790979662

Price: $65

Abstract

Presently some three hundred post-translational modifications are known to occur in bacteria in vivo. Many of these modifications play critical roles in the regulation of proteins and control key biological processes. One of the most predominant modifications, N- and O-glycosylations are now known to be present in bacteria (and archaea) although they were long believed to be limited to eukaryotes. In a number of human pathogens these glycans have been found attached to the surfaces of pilin, flagellin and other surface and secreted proteins where it has been demonstrated that they play a role in the virulence of these bacteria. Mass spectrometry characterization of these glycosylation events has been the enabling key technology for these findings. This review will look at the use of mass spectrometry as a key technology for the detection and mapping of these modifications within microorganisms, with particular reference to the human pathogens, Campylobacter jejuni and Mycobacterium tuberculosis. The overall aim of this review will be to give a basic understanding of the current ‘state-of-the-art’ of the key techniques, principles and technologies, including bioinformatics tools, involved in the analysis of the glycosylation modifications.

Keywords: Proteomics, mass spectrometry, post-translational modifications, glycosylation, eukaryota, prokaryota Campylobacter jejuni, Mycobacterium tuberculosis

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