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Literature summary for 3.2.1.108 extracted from

  • Hermida, C.; Corrales, G.; Canada, F.J.; Aragon, J.J.; Fernandez-Mayoralas, A.
    Optimizing the enzymatic synthesis of beta-D-galactopyranosyl-D-xyloses for their use in the evaluation of lactase activity in vivo (2007), Bioorg. Med. Chem., 15, 4836-4840.
    View publication on PubMed

Application

Application Comment Organism
medicine the use of new substrates for the measurement of lactase activity provides a new method for the noninvasive diagnosis of hypolactasia Rattus norvegicus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
lactose + H2O Rattus norvegicus
-
D-galactose + D-glucose
-
?

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
Sprague-Dawley rat
-

Source Tissue

Source Tissue Comment Organism Textmining
intestinal mucosa
-
Rattus norvegicus
-
small intestine
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.015
-
30 days old rat Rattus norvegicus
0.07
-
18 days old rat Rattus norvegicus
0.172
-
15 days old rat Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-O-beta-D-galactopyranosyl-D-xylose + H2O
-
Rattus norvegicus D-galactose + D-xylose
-
?
3-O-beta-D-galactopyranosyl-D-xylose + H2O
-
Rattus norvegicus D-galactose + D-xylose
-
?
4-O-beta-D-galactopyranosyl-D-xylose + H2O
-
Rattus norvegicus D-galactose + D-xylose
-
?
lactose + H2O
-
Rattus norvegicus D-galactose + D-glucose
-
?

Synonyms

Synonyms Comment Organism
lactase
-
Rattus norvegicus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
activity assay Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
activity assay Rattus norvegicus