Laminaribiose phosphorylase explained

laminaribiose phosphorylase
Ec Number:	2.4.1.31
Cas Number:	37257-29-7
Go Code:	0050045

In enzymology, a laminaribiose phosphorylase is an enzyme that catalyzes the chemical reaction

3-beta-D-glucosyl-D-glucose + phosphate

\rightleftharpoons D-glucose + alpha-D-glucose 1-phosphate

Thus, the two substrates of this enzyme are 3-beta-D-glucosyl-D-glucose and phosphate, whereas its two products are D-glucose and alpha-D-glucose 1-phosphate.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is 3-beta-D-glucosyl-D-glucose:phosphate alpha-D-glucosyltransferase.

References

• Goldemberg SH, Marechal LR, De Souza BC . 1966 . Beta-1,3-oligoglucan: orthophosphate glucosyltransferase from Euglena gracilis . J. Biol. Chem. . 241 . 45 - 50 . 5901055 . 1 .
• Manners DJ, Taylor DC . 1967 . Studies on carbohydrate metabolizing enzymes. XVI. Specificity of laminaribiose phosphorylase from Astasia ocellata . Arch. Biochem. Biophys. . 121 . 443 - 51 . 6057111 . 10.1016/0003-9861(67)90099-9 . 2 .