IUBMB Enzyme Nomenclature


Accepted name: glucan endo-1,3-β-D-glucosidase

Reaction: Hydrolysis of (1→3)-β-D-glucosidic linkages in (1→3)-β-D-glucans

Other name(s): endo-1,3-β-glucanase; laminarinase; laminaranase; oligo-1,3-glucosidase; endo-1,3-β-glucanase; callase; β-1,3-glucanase; kitalase; 1,3-β-D-glucan 3-glucanohydrolase; endo-(1,3)-β-D-glucanase; (1→3)-β-glucan 3-glucanohydrolase; endo-1,3-β-D-glucanase; endo-1,3-β-glucosidase; 1,3-β-D-glucan glucanohydrolase

Systematic name: 3-β-D-glucan glucanohydrolase

Comments: Different from EC endo-1,3(4)-β-glucanase. Very limited action on mixed-link (1,3-1,4-)-β-D-glucans. Hydrolyses laminarin, paramylon and pachyman.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9025-37-0


1. Chesters, C.G.C. and Bull, A.T. The enzymic degradation of laminarin. 2. The multicomponent nature of fungal laminarinases. Biochem. J. 86 (1963) 31-38.

2. Reese, E.T. and Mandels, M. β-D-1,3-Glucanases in fungi. Can. J. Microbiol. 5 (1959) 173-185.

[EC created 1965]

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