ID 4.1.1.109 DE phenylacetaldehyde synthase. CA H(+) + H2O + L-phenylalanine + O2 = 2-phenylacetaldehyde + CO2 + H2O2 + CA NH4(+). CC -!- The enzyme, isolated from the the plants Petunia hybrida and a Rosa CC hybrid, catalyzes the production of phenylacetaldehyde directly from CC L-phenylalanine. CC -!- The enzyme is specific for L-phenylalanine and does not accept other CC aromatic amino acids as substrates. DR Q8RY79, PAAS_ARATH ; Q0ZQX0, PAAS_PETHY ; Q0ZS27, PAAS_ROSHC ; //