Issue 6, 2010

Site-selective chemoenzymatic construction of synthetic glycoproteins using endoglycosidases

Abstract

Combined chemical tagging followed by Endo-A catalysed elongation allows access to homogeneous, elaborated glycoproteins. A survey of different linkages and sugars demonstrated not only that unnatural linkages can be tolerated but they can provide insight into the scope of Endo-A transglycosylation activity. S-linked GlcNAc-glycoproteins are useful substrates for Endo-A extensions and display enhanced stability to hydrolysis at exposed sites. O-CH2-triazole-linked GlcNAc-glycoproteins derived from azidohomoalanine-tagged protein precursors were found to be optimal at sterically demanding sites.

Graphical abstract: Site-selective chemoenzymatic construction of synthetic glycoproteins using endoglycosidases

Supplementary files

Article information

Article type
Edge Article
Submitted
13 Apr 2010
Accepted
31 Aug 2010
First published
20 Oct 2010

Chem. Sci., 2010,1, 709-715

Site-selective chemoenzymatic construction of synthetic glycoproteins using endoglycosidases

M. Fernández-González, O. Boutureira, G. J. L. Bernardes, J. M. Chalker, M. A. Young, J. C. Errey and B. G. Davis, Chem. Sci., 2010, 1, 709 DOI: 10.1039/C0SC00265H

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