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Literature summary for 3.2.1.18 extracted from

  • Schauer, R.; Wember, M.; Tschetsche, H.
    Isolation and characterization of an oligosaccharide- and glycoprotein-specific sialidase from human leucocytes (1984), Hoppe-Seyler's Z. Physiol. Chem., 365, 419-426.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
EDTA
-
Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.8
-
N-glycoloylneuraminic acid-alpha-2,3-lactose
-
Homo sapiens
5.6
-
N-acetylneuraminic acid-alpha-2,6-lactose
-
Homo sapiens
6.7
-
fetuin
-
Homo sapiens
7.9
-
N-acetylneuraminic acid-alpha-2,3-lactose
-
Homo sapiens

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ stimulates the activity of the enzyme Homo sapiens

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
48000
-
disc electrophorese Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
leukocyte
-
Homo sapiens
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.04
-
-
Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N-acetylneuraminic acid-alpha-2,3-lactose + H2O
-
Homo sapiens N-acetylneuraminic acid + lactose
-
?
N-acetylneuraminic acid-alpha-2,6-lactose + H2O
-
Homo sapiens N-acetylneuraminic acid + lactose
-
?
N-glycoloylneuraminic acid-alpha-2,3-lactose + H2O
-
Homo sapiens ?
-
?

Subunits

Subunits Comment Organism
monomer SDS-PAGE Homo sapiens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.6
-
-
Homo sapiens