ID 4.1.1.114 DE cis-3-alkyl-4-alkyloxetan-2-one decarboxylase. CA a cis-3-alkyl-4-alkyloxetan-2-one = a cis-alkene + CO2. CC -!- The enzyme, found in certain bacterial species, catalyzes the last CC step in a pathway for the production of olefins. DR Q8EG65, OLEB_SHEON ; Q8PDW8, OLEB_XANCP ; //