DDT dehydrochlorinase

In enzymology, a DDT-dehydrochlorinase (EC 4.5.1.1) is an enzyme that catalyzes the chemical reaction

Hence, this enzyme has one substrate, 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane, and two products, 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene and chloride.

This enzyme belongs to the family of lyases, specifically the class of carbon-halide lyases. The systematic name of this enzyme class is 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane chloride-lyase [1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene-forming]. Other names in common use include DDT-ase, 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane chloride-lyase, and DDTase. This enzyme participates in 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (DDT) and .