KEGG ENZYME: 2.4.1.97

ENZYME: 2.4.1.97

Entry

EC 2.4.1.97                 Enzyme

Name

1,3-beta-D-glucan phosphorylase;
laminarin phosphoryltransferase;
1,3-beta-D-glucan:orthophosphate glucosyltransferase;
1,3-beta-D-glucan:phosphate alpha-D-glucosyltransferase

Class

Transferases;
Glycosyltransferases;
Hexosyltransferases

Sysname

(1->3)-beta-D-glucan:phosphate alpha-D-glucosyltransferase

Reaction(IUBMB)

[(1->3)-beta-D-glucosyl]n + phosphate = [(1->3)-beta-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate [RN:R03116 R06018]

Reaction(KEGG)

R03116 R06018(G)

Substrate

[(1->3)-beta-D-glucosyl]n;
phosphate [CPD:C00009]

Product

[(1->3)-beta-D-glucosyl]n-1;
alpha-D-glucose 1-phosphate [CPD:C00103]

Comment

Acts on a range of beta-1,3-oligoglucans, and on glucans of laminarin type. Different from EC 2.4.1.30 (1,3-beta-oligoglucan phosphorylase) and EC 2.4.1.31 (laminaribiose phosphorylase).

History

EC 2.4.1.97 created 1978

Reference

Authors

Albrecht GJ, Kauss H.

Title

Purification, crystallization and properties of a beta-(1->3)-glucan phosphorylase from Ochromonas malhamensis.

Journal

Phytochemistry 10:1293-1298 (1971)

Other DBs

ExplorEnz - The Enzyme Database:

2.4.1.97