Tags: Enzyme.
In enzymology an allantoinase (EC 3.5.2.5) is an enzyme that catalyzes the chemical reaction(S)-allantoin + H2O allantoateThus the two substrates of this enzyme are (S)-allantoin and H2O whereas its product is allantoate.This enzyme belongs to the family of hydrolases those acting on carbon-nitrogen bonds other than peptide bonds specifically in cyclic amides. The systematic name of this enzyme class is (S)-allantoin amidohydrolase. This enzyme participates in purine metabolism.