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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

Specific Activity

Specific Activity on EC 3.2.1.108 - lactase

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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.00164
-
non-infected cells, lactase enzyme activity in cell homogenates
0.00167
-
rhesus monkey rotavirus-, RRV, infected cells, lactase enzyme activity in cell homogenates
0.002
-
mutant S218fsX224, mean lactase activity
0.0021
-
mutant Y1390X, mean lactase activity
0.00219
-
rhesus monkey rotavirus-, RRV, infected cells, lactase enzyme activity in brush border-enriched fraction
0.003
-
mutant G1363S, mean lactase activity
0.0033
-
rats are force-fed a low-strach diet, with thyroid hormone treatment
0.00344
-
non-infected cells, lactase enzyme activity in brush border-enriched fraction
0.00359
-
UV, psoralen-inactivated RRV infected cells, lactase enzyme activity in brush border-enriched fraction
0.0042
-
rats are fed a low-starch diet for 7 days
0.005
0.0058
-
rats are force-fed a sucrose diet, with thyroid hormone treatment
0.0067
-
rats are fed a low-starch diet, starved for 3 days, and thyroid hormones are injected daily after the diet
0.0083
0.01
-
rats are fed a high-starch diet for 7 days
0.012
-
rats are fed a low-starch diet, starved for 3 days
0.015
-
30 days old rat
0.07
-
18 days old rat
0.17
-
administration of thyroxine to 8-day-old pups, activity in suckling rat intestine
0.172
-
15 days old rat
0.27
-
control
0.29
-
administration of insuline to 8-day-old pups, activity in suckling rat intestine
0.36
-
administration of cortisone to 8-day-old pups, activity in suckling rat intestine
16.1
-
lactase
450
-
phlorizin hydrolase
additional information