IUBMB Enzyme Nomenclature


Accepted name: 1,2-β-oligoglucan phosphorylase

Reaction: [(1→2)-β-D-glucosyl]n + phosphate = [(1→2)-β-D-glucosyl]n-1 + α-D-glucose 1-phosphate

Systematic name: 1,2-β-D-glucan:phosphate α-D-glucosyltransferase

Comments: The enzyme has been isolated from the bacterium Listeria innocua. It catalyses the reversible phosphorolysis of β-(1→2)-D-glucans. The minimum length of the substrate for the phosphorolytic reaction is 3 D-glucose units. In the synthetic reaction starting from sophorose and α-D-glucose 1-phosphate the average polymerisation degree is 39.

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


1. Nakajima, M., Toyoizumi, H., Abe, K., Nakai, H., Taguchi, H. and Kitaoka, M. 1,2-β-Oligoglucan phosphorylase from Listeria innocua. PLoS One 9 (2014) e92353. [PMID: 24647662]

[EC created 2014]

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