Organism | UniProt | Comment | Textmining |
---|---|---|---|
Rhodobacter capsulatus | - |
- |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
dimethylsulfide + H2O + oxidized benzyl viologen | - |
Rhodobacter capsulatus | dimethylsulfoxide + reduced benzyl viologen | - |
r | |
dimethylsulfide + H2O + oxidized methyl viologen | - |
Rhodobacter capsulatus | dimethylsulfoxide + reduced methyl viologen | - |
r | |
dimethylsulfoxide + reduced benzyl viologen | - |
Rhodobacter capsulatus | dimethylsulfide + H2O + oxidized benzyl viologen | - |
r | |
dimethylsulfoxide + reduced methyl viologen | - |
Rhodobacter capsulatus | dimethylsulfide + H2O + oxidized methyl viologen | - |
r | |
additional information | Second-order rate constants for the two-electron reduction and reoxidation reactions at pH 5.5 are 190000 and 430 per M and s, respectively, while at pH 8.0, the catalytic step is rate-limiting. Kinetically, for the two-electron reactions, the enzyme is more effective in dimethylsulfide oxidation than in dimethylsulfoxide reduction. Reduction of DMSOR by dimethylsulfide is incomplete below 1 mM dimethylsulfide but complete at higher concentrations. Reoxidation of the dimethylsulfide-reduced state by dimethylsulfoxide is always incomplete | Rhodobacter capsulatus | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
DMSOR | - |
Rhodobacter capsulatus |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
8 | - |
Dimethylsulfide | pH 8.0, 25°C | Rhodobacter capsulatus | |
17 | - |
reduced benzyl viologen | pH 8.0, 25°C | Rhodobacter capsulatus | |
27 | - |
reduced methyl viologen | pH 8.0, 25°C | Rhodobacter capsulatus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6.5 | - |
reduction of dimethyl sulfoxide | Rhodobacter capsulatus |
8.3 | - |
oxidation of dimethyl sulfide | Rhodobacter capsulatus |