Imidazolonepropionase
In enzymology, an imidazolonepropionase is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are (S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate and H2O, whereas its two products are N-formimidoyl-L-glutamate and H+.
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 3-propanoate amidohydrolase. Other names in common use include 4-imidazolone-5-propionic acid hydrolase, and imidazolone propionic acid hydrolase. This enzyme participates in histidine metabolism.