thiosulfate reductase (quinone) EC#: 1.8.5.5; ChemWhat Code: 1374744
| Product Name | thiosulfate reductase (quinone) |
| Example Structure |  |
| Synonyms | phsABC, PhsBCDEF |
| EC Number | 1.8.5.5 |
| CAS Registry Number | |
| Comments | The enzyme, characterized from the bacterium Salmonella enterica, is similar to EC 1.17.5.3, formate dehydrogenase-N. It contains a molybdopterin-guanine dinucleotide, five [4Fe-4S] clusters and two heme b groups. The reaction occurs in vivo in the direction of thiosulfate disproportionation, which is highly endergonic. It is driven by the proton motive force that occurs across the cytoplasmic membrane. |
| Cofactor | iron-sulfur;heme b;molybdopterin guanine dinucleotide |
| History | |
| Reactions | Sulfite + hydrogen sulfide + a quinone = thiosulfate + a quinol. |
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