4-hydroxybutyryl-CoA dehydratase/vinylacetyl-CoA-Delta-isomerase
UniProtKB accession: P55792
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Go to UniProtKB: P55792
UniProtKB description: Catalyzes the reversible conversion of 4-hydroxybutyryl-CoA to crotonyl-CoA. The mechanism of the reaction seems to go through three steps: (1) the FAD-dependent oxidation of 4-hydroxybutyryl-CoA to 4-hydroxycrotonyl-CoA; (2) the hydroxyl group is substituted by a hydride derived from the now reduced FAD in an SN2' reaction leading to vinylacetyl-CoA; (3) isomerization to yield crotonyl-CoA.
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