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Literature summary for 3.5.1.1 extracted from

  • Joner, P.E.; Kristiansen, T.; Einasson, M.
    Purification and properties of L-asparaginase A from Acinetobacter calcoaceticus (1973), Biochim. Biophys. Acta, 327, 146-156.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Co2+
-
Acinetobacter calcoaceticus
Cu2+
-
Acinetobacter calcoaceticus
Hg2+
-
Acinetobacter calcoaceticus
NH4+
-
Acinetobacter calcoaceticus
Ni2+
-
Acinetobacter calcoaceticus
PCMB reversed by mercaptoethanol Acinetobacter calcoaceticus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2
-
L-asparagine
-
Acinetobacter calcoaceticus

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ stimulates Acinetobacter calcoaceticus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
25000
-
4 * 25000, SDS-PAGE Acinetobacter calcoaceticus
105000
-
gel filtration Acinetobacter calcoaceticus

Organism

Organism UniProt Comment Textmining
Acinetobacter calcoaceticus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Acinetobacter calcoaceticus

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
32
-
-
Acinetobacter calcoaceticus

Storage Stability

Storage Stability Organism
-20°C, little loss of activity after prolonged storage Acinetobacter calcoaceticus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-Asn + H2O at 5% of the activity with L-Asn Acinetobacter calcoaceticus D-Asp + NH3
-
?
L-Asn + H2O
-
Acinetobacter calcoaceticus L-Asp + NH3
-
?
L-Gln + H2O at 10% of the activity with L-Asn Acinetobacter calcoaceticus L-Glu + NH3
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 25000, SDS-PAGE Acinetobacter calcoaceticus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
3 h, stable Acinetobacter calcoaceticus
60
-
5 min, complete inactivation Acinetobacter calcoaceticus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.4 8.8
-
Acinetobacter calcoaceticus