ENZYME entry: EC 3.1.6.20
| Accepted Name |
|---|
| S-sulfosulfanyl-L-cysteine sulfohydrolase.
|
| Reaction catalysed |
|---|
- [SoxY protein]-S-sulfosulfanyl-L-cysteine + H(2)O <=> [SoxY protein]-S-sulfanyl-L-cysteine + sulfate
- [SoxY protein]-S-(2-sulfodisulfanyl)-L-cysteine + H(2)O <=> [SoxY protein]-S-disulfanyl-L-cysteine + sulfate
|
| Cofactor(s) |
|---|
| Mn(2+).
|
| Comment(s) |
|---|
- The enzyme is part of the Sox enzyme system, which participates in a
bacterial thiosulfate oxidation pathway that produces sulfate.
- It catalyzes two reactions in the pathway.
- In both cases the enzyme hydrolyzes a sulfonate moiety that is bound
(either directly or via a sulfane) to a cysteine residue of a SoxY
protein, releasing sulfate.
- The enzyme from Paracoccus pantotrophus contains a pyroglutamate
(cycloglutamate) at its N-terminus.
|
| Cross-references |
|---|
| BRENDA | 3.1.6.20 |
| EC2PDB | 3.1.6.20 |
| ExplorEnz | 3.1.6.20 |
| PRIAM enzyme-specific profiles | 3.1.6.20 |
| KEGG Ligand Database for Enzyme Nomenclature | 3.1.6.20 |
| IUBMB Enzyme Nomenclature | 3.1.6.20 |
| IntEnz | 3.1.6.20 |
| MEDLINE | Find literature relating to 3.1.6.20 |
| MetaCyc | 3.1.6.20 |
| Rhea expert-curated reactions | 3.1.6.20 |
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