Acetylene hydratase
Definition:
EC Tree > 4 Lyases > 4.2 Carbon-oxygen lyases > 4.2.1 Hydro-lyases > 4.2.1.112 acetylene hydratase
Acetylene hydratase is a non-redox-active tungsten enzyme containing two molybdopterin guanine dinucleotide (MGD) cofactors, a tungsten center and a cubane-type [4Fe-4S] cluster. It hydrates acetylene into acetaldehyde; the tungsten-bound water is activated by an adjacent aspartate and attacks acetylene in a hydrophobic pocket. Ethylene cannot serve as substrate. Structurally it is a W-MGD-dependent DMSO-reductase-family enzyme.
Acetylene hydratase is a non-redox-active tungsten enzyme containing two molybdopterin guanine dinucleotide (MGD) cofactors, a tungsten center and a cubane-type [4Fe-4S] cluster. It hydrates acetylene into acetaldehyde; the tungsten-bound water is activated by an adjacent aspartate and attacks acetylene in a hydrophobic pocket. Ethylene cannot serve as substrate. Structurally it is a W-MGD-dependent DMSO-reductase-family enzyme.
References:
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