In enzymology, a L-lysine-lactamase () is an enzyme that catalyzes the chemical reaction L-lysine 1,6-lactam + H2O L-lysine Thus, the two substrates of this enzyme are L-lysine 1,6-lactam and H2O, whereas its product is L-lysine. 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 L-lysine-1,6-lactam lactamhydrolase. Other names in common use include L-alpha-aminocaprolactam hydrolase, and L-lysinamidase. References EC 3.5.2 Enzymes of unknown structure