Tetrachloroethene reductive dehalogenase
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Tetrachloroethene reductive dehalogenase (EC 1.21.99.5, previously 1.97.1.8) is an enzyme that catalyzes some chemical reactions which allow bacteria to metabolise chlorinated hydrocarbons.[1][2][3] For example, Dehalobacter restrictus converts tetrachloroethylene to trichloroethylene:[4][5]
| Trachloroethene reductive dehalogenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 1.21.99.5 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
The enzyme can also convert trichloroethylene into dichloroethylene and requires an electron acceptor, which is believed to be menaquinone.[6]
This enzyme is an oxidoreductase with systematic name acceptor:trichloroethene oxidoreductase (chlorinating). This enzyme is also called tetrachloroethene reductase.[7] It is one member of a family of enzymes including trichloroethene dehalogenase and vinyl chloride dehalogenase. Reductive dehalogenases are key enzymes for anaerobic respiratory process, termed organohalide respiration, and hence can be used for bioremediation.[8]