KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | kinetic mechanism of oxidative and reductive half-reactions, stopped-flow kinetics | Pseudomonas aeruginosa |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
L-ornithine + NADPH + H+ + O2 | Pseudomonas aeruginosa | hydroxylation of the primary amine of ornithine in the initial step of the biosynthesis of siderophore pyoverdin | N5-hydroxy-L-ornithine + NADP+ + H2O | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Pseudomonas aeruginosa | - |
- |
- |
Posttranslational Modification | Comment | Organism |
---|---|---|
flavoprotein | - |
Pseudomonas aeruginosa |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
L-ornithine + NADPH + H+ + O2 = N5-hydroxy-L-ornithine + NADP+ + H2O | binding of the hydroxylation target is not required to trigger reduction of flavin by NADPH, the reductive half-reaction proceeds in presence and absence of ornithine, reaction of O2 with FADH2 is accelerated 80fold by ornithine, ensuring coupling of NADPH and ornithine, C(4a)-hydroperoxyflavin intermediate, overview | Pseudomonas aeruginosa |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
L-ornithine + NADPH + H+ + O2 | hydroxylation of the primary amine of ornithine in the initial step of the biosynthesis of siderophore pyoverdin | Pseudomonas aeruginosa | N5-hydroxy-L-ornithine + NADP+ + H2O | - |
? | |
L-ornithine + NADPH + H+ + O2 | hydroxylation of the primary amine of ornithine | Pseudomonas aeruginosa | N5-hydroxy-L-ornithine + NADP+ + H2O | - |
? | |
additional information | H2O2 formation by NADPH oxidation in the absence of substrate in presence of FAD | Pseudomonas aeruginosa | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
ornithine hydroxylase | - |
Pseudomonas aeruginosa |
PvdA | - |
Pseudomonas aeruginosa |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
22 | 24 | assay at | Pseudomonas aeruginosa |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
8 | - |
assay at | Pseudomonas aeruginosa |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
flavin | FAD or FMN, required, the reduction of FAD is ornithine-independent | Pseudomonas aeruginosa | |
NADPH | H2O2 formation by NADPH oxidation in the absence of substrate in presence of FAD | Pseudomonas aeruginosa |
General Information | Comment | Organism |
---|---|---|
metabolism | the enzyme catalyzes the initial step of the biosynthesis of siderophore pyoverdin | Pseudomonas aeruginosa |