Cycling of O-linked β-N-acetylglucosamine on nucleocytoplasmic proteins

Gerald Warren Hart, Michael P. Housley, Chad Slawson

Research output: Contribution to journalArticlepeer-review

950 Scopus citations


All animals and plants dynamically attach and remove O-linked β-N-acetylglucosamine (O-GlcNAc) at serine and threonine residues on myriad nuclear and cytoplasmic proteins. O-GlcNAc cycling, which is tightly regulated by the concerted actions of two highly conserved enzymes, serves as a nutrient and stress sensor. On some proteins, O-GlcNAc competes directly with phosphate for serine/threonine residues. Glycosylation with O-GlcNAc modulates signalling, and influences protein expression, degradation and trafficking. Emerging data indicate that O-GlcNAc glycosylation has a role in the aetiology of diabetes and neurodegeneration.

Original languageEnglish (US)
Pages (from-to)1017-1022
Number of pages6
Issue number7139
StatePublished - Apr 26 2007

ASJC Scopus subject areas

  • General


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