1.2.1.39 phenylacetaldehyde dehydrogenase L-phenylalanine degradation II (anaerobic) 2.6.1.1 aspartate transaminase L-phenylalanine degradation II (anaerobic) 2.6.1.27 tryptophan transaminase L-phenylalanine degradation II (anaerobic) 2.6.1.57 aromatic-amino-acid transaminase L-phenylalanine degradation II (anaerobic) 4.1.1.43 phenylpyruvate decarboxylase L-phenylalanine degradation II (anaerobic)