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Literature summary for 3.2.1.18 extracted from

  • Abrashev, I.; Dulguerova, G.; Dolashka-Angelova, P.; Voelter, W.
    Purification and characterization of a novel sialidase from a strain of Arthrobacter nicotianae (2005), J. Biochem., 137, 365-371.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.083
-
glucomacropeptide 37°C, sialidase isoenzyme NA2 Glutamicibacter nicotianae
0.126
-
glucomacropeptide 37°C, sialidase isoenzyme NA1 Glutamicibacter nicotianae

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
54000
-
x * 54000, SDS-PAGE, sialidase isoenzyme NA2 Glutamicibacter nicotianae
65000
-
x * 65000, SDS-PAGE, sialidase isoenzyme NA1 Glutamicibacter nicotianae

Organism

Organism UniProt Comment Textmining
Glutamicibacter nicotianae
-
sialidase isoenzyme NA1
-
Glutamicibacter nicotianae
-
sialidase isoenzyme NA2
-

Purification (Commentary)

Purification (Comment) Organism
-
Glutamicibacter nicotianae

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
sialidase isoenzyme NA1 Glutamicibacter nicotianae
additional information
-
sialidase isoenzyme NA2 Glutamicibacter nicotianae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
glucomacropeptide + H2O sialidase isoenzyme NA1 Glutamicibacter nicotianae ?
-
?
glucomacropeptide + H2O sialidase isoenzyme NA2 Glutamicibacter nicotianae ?
-
?

Subunits

Subunits Comment Organism
? x * 54000, SDS-PAGE, sialidase isoenzyme NA2 Glutamicibacter nicotianae
? x * 65000, SDS-PAGE, sialidase isoenzyme NA1 Glutamicibacter nicotianae

Synonyms

Synonyms Comment Organism
NA1
-
Glutamicibacter nicotianae
NA2
-
Glutamicibacter nicotianae

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40
-
sialidase isoenzyme NA1 Glutamicibacter nicotianae
40
-
sialidase isoenzyme NA2 Glutamicibacter nicotianae

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 50 30°C: about 50% of maximal activity, 50°C: about 70% of maximal activity, sialidase isoenzyme NA2 Glutamicibacter nicotianae
30 50 30°C: about 50% of maximal activity, 50°C: about 85% of maximal activity, sialidase isoenzyme NA1 Glutamicibacter nicotianae

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
49
-
Tm-value, sialidase isoenzyme NA2 Glutamicibacter nicotianae
50
-
30 min, about 30% loss of activity of sialidase isoenzyme NA1 Glutamicibacter nicotianae
50
-
30 min, about 30% loss of activity of sialidase isoenzyme NA2 Glutamicibacter nicotianae
51
-
Tm-value, sialidase isoenzyme NA1 Glutamicibacter nicotianae

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4
-
sialidase isoenzyme NA1 Glutamicibacter nicotianae
5
-
sialidase isoenzyme NA2 Glutamicibacter nicotianae

pH Range

pH Minimum pH Maximum Comment Organism
3 6 pH 3.0: about 65% of maximal activity, pH 6.0: about 50% of maximal activity, sialidase isoenzyme NA1 Glutamicibacter nicotianae
3.5 6.5 pH 3.5: about 55% of maximal activity, pH 6.5: about 55% of maximal activity, sialidase isoenzyme NA2 Glutamicibacter nicotianae

pH Stability

pH Stability pH Stability Maximum Comment Organism
10
-
maximal stability around, sialidase isoenzyme NA1 Glutamicibacter nicotianae
10
-
maximal stability around, sialidase isoenzyme NA2 Glutamicibacter nicotianae