Activating Compound | Comment | Organism | Structure |
---|---|---|---|
sulfate | strong stimulation, maximal activity between 1 M and 2 M | Acidiphilium acidophilum |
Application | Comment | Organism |
---|---|---|
analysis | measurement of the enzyme activity during purification is based on the absorbance of the initial intermediates formed from tetrathionate in the ultraviolet region. Enzyme activity can also be measured by the scattering of insoluble sulfur in the visible region | Acidiphilium acidophilum |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.3 | - |
tetrathionate | pH 3.0, 30°C, presence of 1 M ammonium sulfate | Acidiphilium acidophilum |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
soluble | - |
Acidiphilium acidophilum | - |
- |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
48000 | - |
2 * 48000, SDS-PAGE | Acidiphilium acidophilum |
100000 | - |
gel filtration | Acidiphilium acidophilum |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Acidiphilium acidophilum | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Acidiphilium acidophilum |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
8 | - |
pH 3.0, 30°C | Acidiphilium acidophilum |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
pentathionate + H2O | - |
Acidiphilium acidophilum | 2 sulfur + thiosulfate + sulfate + 2 H+ | - |
? | |
tetrathionate + H2O | - |
Acidiphilium acidophilum | sulfur + thiosulfate + sulfate + 2 H+ | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | 2 * 48000, SDS-PAGE | Acidiphilium acidophilum |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
65 | - |
- |
Acidiphilium acidophilum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
2.5 | - |
- |
Acidiphilium acidophilum |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
1 | - |
no residual activity | Acidiphilium acidophilum |
7 | - |
no residual activity | Acidiphilium acidophilum |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
additional information | presence of an organic cofactor. cofactor is not NAD+ or NADPH. No molybdenum is observed in the purified enzyme | Acidiphilium acidophilum |