IUBMB Enzyme Nomenclature


Accepted name: 4-O-β-D-mannosyl-D-glucose phosphorylase

Reaction: 4-O-β-D-mannopyranosyl-D-glucopyranose + phosphate = D-glucose + α-D-mannose 1-phosphate

Glossary: 4-O-β-D-mannopyranosyl-D-glucopyranose = β-D-mannopyranosyl-(1→4)-D-glucopyranose

Other name(s): mannosylglucose phosphorylase

Systematic name: 4-O-β-D-mannopyranosyl-D-glucopyranose:phosphate α-D-mannosyltransferase

Comments: This enzyme forms part of a mannan catabolic pathway in the anaerobic bacterium Bacteroides fragilis NCTC 9343.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:


1. Senoura, T., Ito, S., Taguchi, H., Higa, M., Hamada, S., Matsui, H., Ozawa, T., Jin, S., Watanabe, J., Wasaki, J. and Ito, S. New microbial mannan catabolic pathway that involves a novel mannosylglucose phosphorylase. Biochem. Biophys. Res. Commun. 408 (2011) 701-706. [PMID: 21539815]

[EC created 2012]

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