Entry
Name
beta-galactosidase;
lactase (ambiguous);
beta-lactosidase;
maxilact;
hydrolact;
beta-D-lactosidase;
S 2107;
lactozym;
trilactase;
beta-D-galactanase;
oryzatym;
sumiklat
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
beta-D-galactoside galactohydrolase
Reaction(IUBMB)
Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides
Reaction(KEGG)
Comment
Some enzymes in this group hydrolyse alpha-L-arabinosides; some animal enzymes also hydrolyse beta-D-fucosides and beta-D-glucosides; cf. EC
3.2.1.108 lactase.
History
EC 3.2.1.23 created 1961, modified 1980
Pathway
ec00531 Glycosaminoglycan degradation
ec00604 Glycosphingolipid biosynthesis - ganglio series
Orthology
K12111 evolved beta-galactosidase subunit alpha
Genes