IUBMB Enzyme Nomenclature


Accepted name: 1,3-β-D-glucan phosphorylase

Reaction: [(1→3)-β-D-glucosyl]n + phosphate = [(1→3)-β-D-glucosyl]n-1 + α-D-glucose 1-phosphate

Other name(s): laminarin phosphoryltransferase; 1,3-β-D-glucan:orthophosphate glucosyltransferase

Systematic name: (1→3)-β-D-glucan:phosphate α-D-glucosyltransferase

Comments: Acts on a range of β-1,3-oligoglucans, and on glucans of laminarin type. Different from EC (1,3-β-oligoglucan phosphorylase) and EC (laminaribiose phosphorylase).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 37340-31-1


1. Albrecht, G.J. and Kauss, H. Purification, crystallization and properties of a β-(1→3)-glucan phosphorylase from Ochromonas malhamensis. Phytochemistry 10 (1971) 1293-1298.

[EC created 1978]

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