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Literature summary for 2.1.3.3 extracted from

  • Kalousek, F.; Francois, B.; Rosenberg, L.E.
    Isolation and characterization of ornithine transcarbamylase from normal human liver (1978), J. Biol. Chem., 253, 3939-3944.
    View publication on PubMed

General Stability

General Stability Organism
cetyltrimethylammonium stabilizes enzyme in crude extract against heat inactivation in presence of the detergent Homo sapiens
loss of activity after the second thawing Homo sapiens

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
114000
-
gel filtration, glycerol density gradient centrifugation Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Homo sapiens
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
233
-
-
Homo sapiens

Storage Stability

Storage Stability Organism
-20°C, 50% glycerol, 10 mM potassium phosphate, pH 7.0, 1 mM 2-mercaptoethanol, 4 months, no loss of activity Homo sapiens
-50°C, indefinitely Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
carbamoyl phosphate + L-ornithine
-
Homo sapiens phosphate + L-citrulline
-
?

Subunits

Subunits Comment Organism
trimer SDS-PAGE under reducing conditions Homo sapiens

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
-50 60 stable Homo sapiens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.7
-
triethanolamine buffer, 85% of maximal activity at pH 8.5, 25% of maximal activity at pH 6.8 Homo sapiens

pH Range

pH Minimum pH Maximum Comment Organism
6.8 8.5 approx. 85% of maximal activity at pH 6.8, approx. 25% of maximal activity at pH 8.5 Homo sapiens

pH Stability

pH Stability pH Stability Maximum Comment Organism
5.8 8.2 120 min, 37°C, stable Homo sapiens