In enzymology, a N-acyl-D-amino-acid deacylase () is an enzyme that catalyzes the chemical reaction N-acyl-D-amino acid + H2O an acid + D-amino acid Thus, the two substrates of this enzyme are N-acyl-D-amino acid and H2O, whereas its two products are acid and D-amino acid. This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is N-acyl-D-amino acid amidohydrolase. It employs one cofactor, zinc. Structural studies As of late 2007, 8 structures have been solved for this class of enzymes, with PDB accession codes , , , , , , , and . References EC 3.5.1 Zinc enzymes Enzymes of known structure