Tags: Enzyme.
In enzymology a DNA-(apurinic or apyrimidinic site) lyase (EC 4.2.99.18) is an enzyme that catalyzes the chemical reactionThe C-O-P bond 3′ to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction leaving a 3′-terminal unsaturated sugar and a product with a terminal 5′-phosphateThis enzyme belongs to the family of lyases specifically the catch-all class of lyases that cleave carbon-oxygen bonds.