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Biochim Biophys Acta. 2010 Feb;1800(2):122-33. doi: 10.1016/j.bbagen.2009.07.019. Epub 2009 Jul 30.

Structural analyses of enzymes involved in the O-GlcNAc modification.

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  • 1York Structural Biology Laboratory, Department of Chemistry, The University of York, Heslington, York, YO10 5YW, UK.


In order to study the O-GlcNAc modification in vivo, it is evident that a range of specific small molecule inhibitors would be a valuable asset. One strategy for the design of such compounds would be to utilise 3-D structural information in tandem with knowledge of catalytic mechanism. The last few years has seen major breakthroughs in our understanding of the 3-D structure of the enzymes involved in the O-GlcNAc modification notably from the study of the tetratricopeptide repeat (TPR) domain of the human O-GlcNAc transferase, of the bacterial homologs of the O-GlcNAc hydrolase and more latterly bacterial homologs of the O-GlcNAc transferase itself. Of particular note are the bacterial O-GlcNAc hydrolase homologs that provide near identical active centres to the human enzyme. These have informed the design and/or subsequent analysis of inhibitors of this enzyme which have found great use in the chemical dissection of the O-GlcNAc in vivo, as described by Macauley and Vocadlo elsewhere in this issue.

Copyright 2009 Elsevier B.V. All rights reserved.

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