General Stability | Organism |
---|---|
complete inactivation after dialysis against distilled water or 10 mM phosphate buffer, pH 7.5, for 16 h at 0°C | Chlamydomonas reinhardtii |
glutamate decreases stability | Chlamydomonas reinhardtii |
N-acetylglutamate stabilizes and protects against inactivating effect of heat and 4 M urea | Chlamydomonas reinhardtii |
N2-acetylornithine stabilizes | Chlamydomonas reinhardtii |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
additional information | not: iodoacetate | Chlamydomonas reinhardtii | |
p-chloromercuribenzoate | - |
Chlamydomonas reinhardtii |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.13 | - |
L-glutamate | - |
Chlamydomonas reinhardtii | |
5.5 | - |
alpha-N-acetyl-L-ornithine | - |
Chlamydomonas reinhardtii |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
N2-acetyl-L-ornithine + L-glutamate | Chlamydomonas reinhardtii | first step in arginine biosynthesis | L-ornithine + N-acetyl-L-glutamate | - |
r |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Chlamydomonas reinhardtii | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Chlamydomonas reinhardtii |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
17.7 | - |
- |
Chlamydomonas reinhardtii |
Storage Stability | Organism |
---|---|
0°C, 30% loss of activity after storage overnight | Chlamydomonas reinhardtii |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
N2-acetyl-L-ornithine + H2O | hydrolytic activity is 1% of the transferase activity | Chlamydomonas reinhardtii | L-ornithine + acetate | - |
? | |
N2-acetyl-L-ornithine + L-glutamate | specific for L-glutamate and L-ornithine | Chlamydomonas reinhardtii | L-ornithine + N-acetyl-L-glutamate | - |
r | |
N2-acetyl-L-ornithine + L-glutamate | first step in arginine biosynthesis | Chlamydomonas reinhardtii | L-ornithine + N-acetyl-L-glutamate | - |
r | |
N2-butyryl-L-ornithine + H2O | - |
Chlamydomonas reinhardtii | L-ornithine + butyric acid | - |
? | |
N2-propionyl-L-ornithine + glutamate | - |
Chlamydomonas reinhardtii | L-ornithine + N-propionylglutamate | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
37 | - |
assay at | Chlamydomonas reinhardtii |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.5 | 9 | - |
Chlamydomonas reinhardtii |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
additional information | no specific cofactor | Chlamydomonas reinhardtii |