IUBMB Enzyme Nomenclature


Accepted name: UDP-glucose-glycoprotein glucose phosphotransferase

Reaction: UDP-glucose + glycoprotein D-mannose = UMP + glycoprotein 6-(D-glucose-1-phospho)-D-mannose

Other names: UDP-glucose:glycoprotein glucose-1-phosphotransferase; GlcPTase; Glc-phosphotransferase; uridine diphosphoglucose-glycoprotein glucose-1-phosphotransferase

Systematic name: UDP-glucose:glycoprotein-D-mannose glucosephosphotransferase

Comments: Penultimate mannose residues on oligo-mannose type glycoproteins can act as acceptors.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 84861-40-5


1. Koro, L.A. and Marchase, R.B. A UDP-glucose:glycoprotein glucose-1-phosphotransferase in embryonic chicken neural retina. Cell 31 (1982) 739-748. [PMID: 6297779]

[EC created 1986]

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