Definitions for "Lyase"
Any of a class of enzymes that catalyse either the cleavage of a double bond and the addition of new groups to a substrate, or the formation of a double bond.
a homodimeric mitochondrial matrix enzyme that catalyzes the cleavage of HMG-CoA to acetoacetic acid and acetyl-CoA, the last step of both ketogenesis and leucine catabolism
In biochemistry, a lyase is an enzyme that catalyzes the breaking of various chemical bonds by means other than hydrolysis and oxidation, often forming a new double bond or a new ring structure.