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Literature summary for 3.2.1.28 extracted from

  • Galand, G.
    Purification and characterization of kidney and intestinal brush-border membrane trehalases from the rabbit (1984), Biochim. Biophys. Acta, 789, 10-19.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
phlorizin
-
Oryctolagus cuniculus
sucrose competitive Oryctolagus cuniculus
Tris competitive Oryctolagus cuniculus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.5
-
trehalose pH 6.0 Oryctolagus cuniculus

Localization

Localization Comment Organism GeneOntology No. Textmining
brush border trehalase accounts for 0.1% and 0.3% of total brush-border membrane protein of intestine and kidney, respectively Oryctolagus cuniculus 5903
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
75000
-
1 * 75000, enzyme from kidney and intestine, SDS-PAGE Oryctolagus cuniculus
85000
-
enzyme from kidney and intestine, gel filtration Oryctolagus cuniculus

Organism

Organism UniProt Comment Textmining
Oryctolagus cuniculus
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein
-
Oryctolagus cuniculus

Purification (Commentary)

Purification (Comment) Organism
-
Oryctolagus cuniculus

Source Tissue

Source Tissue Comment Organism Textmining
intestine brush-border membrane Oryctolagus cuniculus
-
kidney brush border membrane Oryctolagus cuniculus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
312
-
kidney Oryctolagus cuniculus
343
-
intestine Oryctolagus cuniculus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
trehalose + H2O
-
Oryctolagus cuniculus D-glucose
-
?

Subunits

Subunits Comment Organism
monomer 1 * 75000, enzyme from kidney and intestine, SDS-PAGE Oryctolagus cuniculus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
stable up to Oryctolagus cuniculus
70
-
3 min, 90% loss of activity Oryctolagus cuniculus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5 6
-
Oryctolagus cuniculus

pH Stability

pH Stability pH Stability Maximum Comment Organism
4.5 7 37°C, 2 h, stable Oryctolagus cuniculus