Carnitine dehydratase

In enzymology, a carnitine dehydratase (EC 4.2.1.89) is an enzyme that catalyzes the chemical reaction

Hence, this enzyme has one substrate, L-carnitine, and two products, 4-(trimethylammonio)but-2-enoate and H₂O.

This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic name of this enzyme class is L-carnitine hydro-lyase [4-(trimethylammonio)but-2-enoate-forming]. This enzyme is also called L-carnitine hydro-lyase.