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Literature summary for 1.4.3.2 extracted from

  • Tan, N.H.; Saifuddin, M.N.
    Isolation and characterization of an unusual form of L-amino acid oxidase from King cobra (Ophiophagus hannah) venom (1989), Biochem. Int., 19, 937-944.
    View publication on PubMed

General Stability

General Stability Organism
freezing, quick freezing with dry ice/acetone mixture and storage at -15°C for 60 h, enzyme is stable Ophiophagus hannah

Inhibitors

Inhibitors Comment Organism Structure
additional information substrate inhibition Ophiophagus hannah

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.14
-
L-leucine
-
Ophiophagus hannah

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
68000
-
2 * 68000, SDS-PAGE Ophiophagus hannah
140000
-
gel filtration Ophiophagus hannah

Organism

Organism UniProt Comment Textmining
Ophiophagus hannah
-
king cobra
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein 3.8% carbohydrate Ophiophagus hannah

Purification (Commentary)

Purification (Comment) Organism
-
Ophiophagus hannah

Source Tissue

Source Tissue Comment Organism Textmining
venom
-
Ophiophagus hannah
-

Storage Stability

Storage Stability Organism
4°C, pH 7.4, 20 mM Tris-HCl, 3 months Ophiophagus hannah

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-amino acid + H2O + O2
-
Ophiophagus hannah 2-oxo acid + NH3 + H2O2
-
?

Subunits

Subunits Comment Organism
dimer 2 * 68000, SDS-PAGE Ophiophagus hannah

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
4
-
3 months, no loss of activity Ophiophagus hannah
25
-
1 month, no loss of activity Ophiophagus hannah
37
-
5 days, no loss of activity, 14 days, 20% loss of activity Ophiophagus hannah

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
86.6
-
L-leucine
-
Ophiophagus hannah

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Ophiophagus hannah

pH Stability

pH Stability pH Stability Maximum Comment Organism
9
-
25°C, 1 h stable Ophiophagus hannah
9
-
25°C, 5 min, 47% loss of activity, complete loss of activity after 30 min Ophiophagus hannah

Cofactor

Cofactor Comment Organism Structure
FAD 2 mol of FAD per mol of enzyme Ophiophagus hannah