ENTRY       EC 3.2.1.108
NAME        Lactase
CLASS       Hydrolases
            Glycosidases
            Hydrolysing O-glycosyl compounds
SYSNAME     Lactose galactohydrolase
REACTION    Lactose + H2O = D-Glucose + D-Galactose
SUBSTRATE   Lactose
            H2O
PRODUCT     D-Glucose
            D-Galactose
COMMENT     The enzyme from intestinal mucosa is isolated as a complex which
            also catalyses the reaciton of EC 3.2.1.62.  cf. EC 3.2.1.23.
PATHWAY     PATH: MAP00052  Galactose metabolism
MOTIF       PS: PS00572  [LIVMFSTC]-[LIVFYS]-[LIV]-[LIVMST]-E-N-G-[LIVMFAR]-
                         [CSAGN]
            PS: PS00653  F-x-[FYWM]-[GSTA]-x-[GSTA]-x-[GSTA](2)-[FYNH]-[NQ]-x-E-
                         x-[GSTA]
DBLINKS     University of Geneva ENZYME DATA BANK: 3.2.1.108
            WIT (What Is There) Metabolic Reconstruction: 3.2.1.108
///