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Literature summary for 3.2.1.25 extracted from

  • Noeske, C.; Mersmann, G.
    beta-D-Mannosidase from human placenta: properties and partial purification (1983), Hoppe-Seyler's Z. Physiol. Chem., 364, 1645-1651.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
EDTA activates Homo sapiens

General Stability

General Stability Organism
EDTA, 1 mM, stabilizes Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
D-mannosamine
-
Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.2
-
p-nitrophenyl-beta-D-mannopyranoside
-
Homo sapiens

Localization

Localization Comment Organism GeneOntology No. Textmining
lysosome
-
Homo sapiens 5764
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
75000
-
gradient PAGE Homo sapiens
79000
-
gel filtration Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
placenta
-
Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-acetamido-2-deoxymannopyranose + H2O
-
Homo sapiens ?
-
?
2-amino-2-deoxymannopyranose + H2O
-
Homo sapiens ?
-
?
alpha-D-mannopyranose 1-phosphate + H2O
-
Homo sapiens alpha-D-mannose + phosphate
-
?
D-mannofuranurono-6,3-lactone + H2O
-
Homo sapiens ?
-
?
D-mannoheptulose + H2O
-
Homo sapiens ?
-
?
D-mannono-1,4-lactone + H2O
-
Homo sapiens ?
-
?
L-mannono-1,4-lactone + H2O
-
Homo sapiens ?
-
?
mannopyranosylamine + H2O
-
Homo sapiens ?
-
?
methyl alpha-D-mannopyranoside + H2O
-
Homo sapiens ?
-
?
p-nitrophenyl-beta-D-mannoside + H2O p-nitrophenyl-beta-D-mannopyranoside Homo sapiens p-nitrophenol + alpha-D-mannose
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.2
-
-
Homo sapiens

pH Range

pH Minimum pH Maximum Comment Organism
3.7 4.6 about 95% of maximal activity at pH 3.7 and pH 4.6 Homo sapiens