Entry
Name
glucosylgalactose phosphorylase;
4-O-beta-D-glucosyl-D-galactose phosphorylase
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
beta-D-glucosyl-(1->4)-D-galactose:phosphate alpha-D-glucosyltransferase (configuration-inverting)
Reaction(IUBMB)
beta-D-glucosyl-(1->4)-D-galactose + phosphate = alpha-D-glucopyranose 1-phosphate + D-galactopyranose [RN:
R12979 ]
Reaction(KEGG)
Substrate
beta-D-glucosyl-(1->4)-D-galactose [CPD:
C22492 ];
phosphate [CPD:
C00009 ]
Product
alpha-D-glucopyranose 1-phosphate;
D-galactopyranose [CPD:
C00124 ]
Comment
The enzyme from the bacterium Paenibacillus polymyxa belongs to glycoside hydrolase family 94. It has a much lower activity with 4-O-beta-D-glucosyl-L-arabinose.
History
EC 2.4.1.388 created 2022
Orthology
K25764 glucosylgalactose phosphorylase
Genes
Taxonomy
Reference
Authors
De Doncker M, De Graeve C, Franceus J, Beerens K, Kren V, Pelantova H, Vercauteren R, Desmet T.
Title
Exploration of GH94 Sequence Space for Enzyme Discovery Reveals a Novel Glucosylgalactose Phosphorylase Specificity.
Journal
Sequence
Other DBs
ExPASy - ENZYME nomenclature database: 2.4.1.388