Autocatalysed oxidative modifications to 2-oxoglutarate dependent oxygenases.
Ferrous iron and 2-oxoglutarate-dependent oxygenases and related enzymes catalyse a range of oxidative reactions, possibly the widest of any enzyme family. Their catalytic flexibility is proposed to be related to their nonhaem iron-binding site, which utilizes two or three protein-based ligands. A p...
| Main Authors: | , , , |
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| פורמט: | Journal article |
| שפה: | English |
| יצא לאור: |
2012
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| סיכום: | Ferrous iron and 2-oxoglutarate-dependent oxygenases and related enzymes catalyse a range of oxidative reactions, possibly the widest of any enzyme family. Their catalytic flexibility is proposed to be related to their nonhaem iron-binding site, which utilizes two or three protein-based ligands. A possible penalty for this flexibility is that they may be more prone to oxidative damage than the P450 oxidases, where the iron is arguably located in a more controlled environment. We review the evidence for autocatalysed oxidative modifications to 2-oxoglutarate-dependent oxygenases, including the recently reported studies on human enzymes, as well as the oxidative fragmentations observed in the case of the plant ethylene-forming enzyme (1-aminocyclopropane-1-carboxylic acid oxidase). |
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