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3.2.1.108: lactase

This is an abbreviated version!
For detailed information about lactase, go to the full flat file.

Word Map on EC 3.2.1.108

Reaction

lactose
+
H2O
=
D-galactose
+
D-glucose

Synonyms

intestinal lactase, lactase, lactase phlorizin hydrolase, lactase phlorizin-hydrolase, lactase-phlorizin hydrolase, lactase-phlorizin hydrolase LPH, lactase-phlorozin hydrolase, lactase/phlorizin hydrolase, LCT, LPH

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.108 lactase

Inhibitors

Inhibitors on EC 3.2.1.108 - lactase

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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
2-fluoro-dinitrophenylglucoside
-
specifically inhibits phlorizin hydrolase, lactase activity is inhibited slowly
cerebroside
-
bovine brain cerebroside
D-glucal
-
40% inhibition for 4-O-beta-D-galactopyranosyl-D-xylose and 75% inhibition for 3-O-beta-D-galactopyranosyl-D-xylose at 100 mM D-glucal, no increase of inhibition above 100 mM D-glucal
epigallocatechin-3-gallate
-
inhibition by epigallocatechin-3-gallate of lactase is alleviated about 1.7fold by proline-rich proteins
gluconolactone
-
-
N-(n-butyl)-deoxygalactojirimycin
-
-
NSP4
-
impairment of lactase activity observed during rotavirus infection results from an inhibitory action of the secreted non-structural rotavirus protein NSP4
-
phlorizin
thyroxine
-
administration of thyroxine to 8-day-old pups shows a decline in lactase activity
additional information
-
rotavirus impairs lactase enzymatic activity by an NSP4-dependant mechanism in brush border of human enterocyte-like Caco-2 cells, the infected brush border membranes show an enzyme with altered kinetics, overview
-