acetylene hydratase EC#: 4.2.1.112; ChemWhat Code: 1382408

Product Name acetylene hydratase
Example Structure Example Structure of acetylene hydratase EC#: 4.2.1.112
Synonyms (E)-4-hydroxy-3-methyl-but-2-enyl diphosphate reductase, AH, HMBPP reductase, ispH, More, tungsten-dependent acetylene hydratase
EC Number 4.2.1.112
CAS Registry Number
Comments This is a non-redox-active enzyme that contains two molybdopterin guanine dinucleotide (MGD) cofactors, a tungsten centre and a cubane type [4Fe-4S] cluster [2]. The tungsten centre binds a water molecule that is activated by an adjacent aspartate residue, enabling it to attack acetylene bound in a distinct hydrophobic pocket [2]. Ethylene cannot act as a substrate [1].
Cofactor W cation Mo-bis(molybdopterin guanine dinucleotide) iron-sulfur
History
Reactions Acetaldehyde = acetylene + H(2)O.

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