Inhibitors | Comment | Organism | Structure |
---|---|---|---|
hypoxanthine | - |
Ricinus communis | |
xanthine | - |
Ricinus communis |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
cytoplasm | - |
Ricinus communis | 5737 | - |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
310000 | - |
gel filtration | Ricinus communis |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
2-amino-4-hydroxypteridine + O2 | Ricinus communis | catabolism of purines via pteridines in plants | 2-amino-4,7-dihydroxypteridine + ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Ricinus communis | - |
castor bean | - |
Purification (Comment) | Organism |
---|---|
partial, using ammonium sulfate precipitation followed by gradient elution from a Celite column | Ricinus communis |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
seed | germinating, endosperm tissue | Ricinus communis | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
2-amino-4-hydroxypteridine + O2 | strictly dependent on oxygen | Ricinus communis | 2-amino-4,7-dihydroxypteridine + ? | - |
? | |
2-amino-4-hydroxypteridine + O2 | catabolism of purines via pteridines in plants | Ricinus communis | 2-amino-4,7-dihydroxypteridine + ? | - |
? | |
additional information | other electron acceptors such as ferricyanide, cytochrome c, 2,6-dichlorophenol indophenol and methylene blue are ineffective, enzyme does not act on hypoxanthine | Ricinus communis | ? | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
37 | - |
assay at | Ricinus communis |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6.8 | - |
- |
Ricinus communis |
7 | - |
assay at | Ricinus communis |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
5.2 | 8.1 | half-maximal activity at pH 5.2 and 8.1 | Ricinus communis |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.016 | - |
hypoxanthine | - |
Ricinus communis | |
0.016 | - |
xanthine | - |
Ricinus communis |