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

3.2.1.108

sucrase

milk

maltase

intolerance

disaccharidase

brush

border

mucosal

jejunal

gastrointestinal

malabsorption

breath

children

dairy

wean

villus

diarrhea

enterocytes

infant

bowel

ileum

hypolactasia

suckling

crypt

duodenal

aminopeptidase

piglets

trehalase

brush-border

non-persistence

sucrase-isomaltase

maldigestion

adult-type

yogurt

glucoamylase

3.2.1.23

isomaltase

lactulose

bloating

small-intestinal

microvillus

coeliac

flatulence

archaeological

maltase-glucoamylase

medicine

crypt-villus

pharmacology

food industry

cellobiase

carbohydrases

formula-fed

pastor

Reaction

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

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Results	in table
2	Activating Compound
25	AA Sequence
13	Application
1	CAS Registry Number
7	Cloned(Commentary)
3179	Disease/ Diagnostics
2	General Information
1	General Stability
2	IC50 Value
16	Inhibitors
23	KM Value [mM]
17	Localization
15	Molecular Weight [Da]
25	Natural Substrates/ Products (Substrates)
100	Organism
3	Pathway
3	pH Optimum
2	pH Range
1	pH Stability
9	Posttranslational Modification
23	Protein Variants
3	Purification (Commentary)
2	Reaction
16	Reaction Type
45	Reference
42	Source Tissue
42	Specific Activity [micromol/min/mg]
3	Storage Stability
92	Substrates and Products (Substrate)
8	Subunits
52	Synonyms
1	Systematic Name
3	Temperature Optimum [°C]
3	Temperature Stability [°C]
6	Turnover Number [1/s]

Systematic Name

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Systematic Name on EC 3.2.1.108 - lactase

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lactose galactohydrolase (configuration-retaining)

The enzyme from intestinal mucosa contains two glycosyl hydrolase domains, both of which belong to glycosyl hydrolase family 1 (GH1). While the first domain catalyses the activity described here, the second domain catalyses the reaction of EC 3.2.1.62 glycosylceramidase. cf. EC 3.2.1.33 amylo-alpha-1,6-glucosidase.