Tags: Enzyme.
In enzymology a carboxymethylenebutenolidase (EC 3.1.1.45) is an enzyme that catalyzes the chemical reaction4-carboxymethylenebut-2-en-4-olide + H2O 4-oxohex-2-enedioateThus the two substrates of this enzyme are 4-carboxymethylenebut-2-en-4-olide and H2O whereas its product is 4-oxohex-2-enedioate.This enzyme belongs to the family of hydrolases specifically those acting on carboxylic ester bonds.