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Literature summary for 3.2.1.46 extracted from

  • Rushton, A.R.; Dawson, G.
    Glycosphinoglipid beta-galactosidases of cultured mammalian cells. Characterization of the enzymes from mouse cell line lmtk and human Lesch-Nyhan fibroblasts (1975), Biochim. Biophys. Acta, 388, 92-105.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
taurocholate
-
Mus musculus
taurocholate
-
Homo sapiens
Triton X-100
-
Mus musculus
Triton X-100
-
Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
D-galactose
-
Homo sapiens
D-galactose
-
Mus musculus
lactose
-
Homo sapiens
lactose
-
Mus musculus
taurocholate high concentrations, above 0.3% w/v Homo sapiens
taurocholate high concentrations, above 0.3% w/v Mus musculus

Metals/Ions

Metals/Ions Comment Organism Structure
Cl- activating Mus musculus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
D-galactosyl-N-acylsphingosine + H2O Mus musculus
-
?
-
?
D-galactosyl-N-acylsphingosine + H2O Homo sapiens
-
?
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
Lesch-Nyhan cells
-
Mus musculus
-
LMTK-cells
-

Source Tissue

Source Tissue Comment Organism Textmining
skin fibroblast Lesch-Nyhan cells Homo sapiens
-
skin fibroblast LMTK-cells Mus musculus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylumbelliferyl beta-galactoside + H2O
-
Mus musculus methylumbelliferone + beta-D-galactose
-
?
4-methylumbelliferyl beta-galactoside + H2O
-
Homo sapiens methylumbelliferone + beta-D-galactose
-
?
D-galactosyl-N-acylsphingosine + H2O
-
Mus musculus D-galactose + N-acylsphingosine
-
?
D-galactosyl-N-acylsphingosine + H2O
-
Homo sapiens D-galactose + N-acylsphingosine
-
?
D-galactosyl-N-acylsphingosine + H2O
-
Mus musculus ?
-
?
D-galactosyl-N-acylsphingosine + H2O
-
Homo sapiens ?
-
?
galactocerebroside + H2O
-
Mus musculus D-galactose + N-acylceramide
-
?
galactocerebroside + H2O
-
Homo sapiens D-galactose + N-acylceramide
-
?
galactosylceramide + H2O
-
Mus musculus D-galactose + N-acylceramide
-
?
galactosylceramide + H2O
-
Homo sapiens D-galactose + N-acylceramide
-
?
GM1 ganglioside + H2O
-
Mus musculus D-galactose + N-acylceramide
-
?
GM1 ganglioside + H2O
-
Homo sapiens D-galactose + N-acylceramide
-
?
lactosylsphingosine + H2O
-
Mus musculus lactose + sphingosine
-
?
lactosylsphingosine + H2O
-
Homo sapiens lactose + sphingosine
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
54
-
20 min, 45% inactivation Mus musculus
54
-
10 min, 45% inactivation Homo sapiens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.1
-
-
Mus musculus
4.4
-
-
Homo sapiens

pH Range

pH Minimum pH Maximum Comment Organism
3.5 5.3 pH 3.5: about 10% of maximal activity, pH 5.3: about 40% of maximal activity Mus musculus
3.5 5.3 pH 3.5: about 10% of maximal activity, pH 5.3: about 40% of maximal activity Homo sapiens