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Nature Research, Nature Structural and Molecular Biology, 7(15), p. 764-765, 2008

DOI: 10.1038/nsmb.1443

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Structure of an O-GlcNAc transferase homolog provides insight into intracellular glycosylation

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

N-Acetylglucosamine (O-GlcNAc) modification of proteins provides a mechanism for the control of diverse cellular processes through a dynamic interplay with phosphorylation. UDP-GlcNAc:polypeptidyl transferase (OGT) catalyzes O-GlcNAc addition. The structure of an intact OGT homolog and kinetic analysis of human OGT variants reveal a contiguous superhelical groove that directs substrates to the active site.