Inhibitors | Comment | Organism | Structure |
---|---|---|---|
1-cyclohexyl-3-(2-morpholinoethyl)-carbodiimide metho-p-toluenesulfonate | preincubation with NO2- completely protects | Derxia gummosa | |
2,2'-bipyridine | 1 mM, 40% inhibition, no inhibition if enzyme is preincubated with nitrite or NH2OH prior to adding the inhibitor | Derxia gummosa | |
8-hydroxyquinoline | 1 mM, 96% inhibition | Derxia gummosa | |
antimycin A | 0.2 mM, 45% inhibition | Derxia gummosa | |
CN- | 1 mM, 45% inhibition, no inhibition if enzyme is preincubated with nitrite or NH2OH prior to adding the inhibitor | Derxia gummosa | |
dinitrophenol | - |
Derxia gummosa | |
hydroxylamine | competitive vs. nitrite | Derxia gummosa | |
Iodine | - |
Derxia gummosa | |
KCNS | 0.1 mM, 90% inhibition of NH2OH reductase activity, nitrite reductase activity is not affected | Derxia gummosa | |
N-ethylmaleimide | 0.1 mM, 52% inhibition | Derxia gummosa | |
NH2OH | competitive vs. NO2- | Derxia gummosa | |
nitrite | competitive vs. hydroxylamine | Derxia gummosa | |
p-chloromercuribenzoate | 0.1 mM, 60% inhibition | Derxia gummosa | |
Rose bengal | preincubation with NO2- completely protects | Derxia gummosa | |
rotenone | 0.1 mM, 56% inhibition | Derxia gummosa |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0048 | - |
NO2- | - |
Derxia gummosa | |
0.0063 | - |
NADH | + NO2- | Derxia gummosa | |
0.15 | - |
NADH | + hydroxylamine | Derxia gummosa | |
5.3 | - |
hydroxylamine | - |
Derxia gummosa |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Derxia gummosa | - |
- |
- |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.422 | - |
reduction of NO2- | Derxia gummosa |
0.868 | - |
reduction of hydroxylamine | Derxia gummosa |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
NAD(P)H + NH2OH | - |
Derxia gummosa | NAD(P)+ + NH3 + H2O | - |
? | |
NAD(P)H + nitrite + H+ | NADH is preferred, reduced benzyl viologen or methyl viologen can act as artificial electron donors | Derxia gummosa | NAD(P)+ + NH3 + H2O | - |
? | |
nitrite + NADH + H+ | - |
Derxia gummosa | NH3 + NAD+ + H2O | - |
r |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
8.5 | - |
- |
Derxia gummosa |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
NADH | - |
Derxia gummosa | |
NADPH | - |
Derxia gummosa |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.52 | - |
NO2- | - |
Derxia gummosa | |
24 | - |
NH2OH | - |
Derxia gummosa |