1. 1.13.12.9 enzyme   phenylalanine 2-monooxygenase
                      phenylalanine (deaminating, decarboxylating)oxidase
                      L-phenylalanine oxidase (deaminating and decarboxylating)
                      L-phenylalanine:oxygen 2-oxidoreductase (decarboxylating)

2. 1.14.16.1 enzyme   phenylalanine hydroxylase
                      phenylalanine 4-hydroxylase
                      phenylalanine 4-monooxygenase
                      L-phenylalanine,tetrahydrobiopterin:oxygen oxidoreductase (4-hydroxylating)
                      phenylalaninase

3. 1.4.1.20 enzyme   phenylalanine dehydrogenase
                      L-phenylalanine dehydrogenase
                      L-phenylalanine:NAD+ oxidoreductase (deaminating)
                      PHD

4. 2.3.1.53 enzyme   phenylalanine N-acetyltransferase
                      acetyl-CoA:L-phenylalanine N-acetyltransferase
                      acetyl-CoA-L-phenylalanine alpha-N-acetyltransferase

5. 2.6.1.5 enzyme   phenylalanine aminotransferase
                      phenylalanine transaminase
                      phenylalanine-alpha-ketoglutarate transaminase
                      L-phenylalanine 2-oxoglutarate aminotransferase
                      phenylpyruvate transaminase
                      tyrosine aminotransferase
                      tyrosine transaminase
                      L-tyrosine aminotransferase
                      glutamic phenylpyruvic aminotransferase
                      glutamic-hydroxyphenylpyruvic transaminase
                      phenylpyruvic acid transaminase
                      tyrosine-2-ketoglutarate aminotransferase
                      tyrosine-alpha-ketoglutarate aminotransferase
                      tyrosine-alpha-ketoglutarate transaminase
                      L-tyrosine:2-oxoglutarate aminotransferase

6. 2.7.7.54 enzyme   phenylalanine adenylyltransferase
                      L-phenylalanine adenylyltransferase
                      ATP:L-phenylalanine adenylyltransferase

7. 4.1.1.53 enzyme   phenylalanine decarboxylase
                      L-phenylalanine decarboxylase
                      L-phenylalanine carboxy-lyase
                      aromatic L-amino acid decarboxylase

8. 4.3.1.5 enzyme   phenylalanine deaminase
                      phenylalanine ammonia-lyase
                      phenylalanine ammonium-lyase
                      L-phenylalanine ammonia-lyase
                      PAL
                      tyrase
                      tyrosine ammonia-lyase
                      L-tyrosine ammonia-lyase

9. 5.1.1.11 enzyme   phenylalanine racemase
                      phenylalanine racemase (ATP-hydrolysing)
                      phenylalanine racemase (ATP-hydrolysing)
                      phenylalanine racemase (adenosine triphosphate-hydrolysing)
                      gramicidin S synthetase I

10. 6.1.1.20 enzyme   phenylalanine translase
                      phenylalanine-tRNA ligase
                      phenylalanine-tRNA synthetase
                      L-phenylalanine:tRNA(Phe) ligase (AMP-forming)
                      phenylalanyl-tRNA ligase
                      phenylalanyl-tRNA synthetase
                      L-phenylalanyl-tRNA synthetase
                      phenylalanyl-transfer RNA ligase
                      phenylalanyl-transfer RNA synthetase
                      phenylalanyl-transfer ribonucleate synthetase

11. 2.6.1.27 enzyme   L-phenylalanine-2-oxoglutarate aminotransferase
                      hydroxytryptophan aminotransferase
                      tryptophan aminotransferase
                      tryptophan transaminase
                      L-tryptophan aminotransferase
                      L-tryptophan transaminase
                      5-hydroxytryptophan-ketoglutaric transaminase
                      L-tryptophan:2-oxoglutarate aminotransferase

12. 2.6.1.58 enzyme   phenylalanine (histidine) aminotransferase
                      phenylalanine(histidine) transaminase
                      L-phenylalanine:pyruvate aminotransferase
                      phenylalanine(histidine):pyruvate aminotransferase
                      L-phenylalanine(L-histidine):pyruvate aminotransferase
                      histidine:pyruvate aminotransferase

13. 2.6.1.49 enzyme   dihydroxyphenylalanine aminotransferase
                      dihydroxyphenylalanine transaminase
                      phenylalanine-DOPP transaminase (PDT)
                      3,4-dihydroxy-L-phenylalanine:2-oxoglutarate aminotransferase
                      dopa aminotransferase
                      dopa transaminase
                      L-dopa transaminase
                      aspartate-DOPP transaminase (ADT)
                      glutamate-DOPP transaminase (GDT)

14. 3.4.11.4 enzyme   alanine-phenylalanine-proline arylamidase
                      aminoexotripeptidase
                      aminotripeptidase
                      imidoendopeptidase
                      lymphopeptidase
                      tripeptidase
                      peptidase B
                      peptidase T
                      tripeptide aminopeptidase

15. 4.3.1.11 enzyme   dihydroxyphenylalanine ammonia-lyase
                      3,4-dihydroxy-L-phenylalanine ammonia-lyase
                      beta-(3,4-dihydroxyphenyl)-L-alanine (DOPA) ammonia-lyase

16. 1.13.11.29 enzyme   3,4-dihydroxy-L-phenylalanine:oxygen 4,5-oxidoreductase (recyclizing)
                      stizolobate synthase

17. 1.13.11.30 enzyme   3,4-dihydroxy-L-phenylalanine:oxygen 2,3-oxidoreductase (recyclizing)
                      stizolobinate synthase

18. 1.14.18.1 enzyme   monophenol dihydroxyphenylalanine:oxygen oxidoreductase
                      monophenol, dihydroxy-L-phenylalanine oxygen oxidoreductase
                      catecholase
                      cresolase
                      monophenolase
                      phenolase
                      polyphenolase
                      tyrosinase
                      catechol oxidase
                      chlorogenic oxidase
                      diphenol oxidase
                      dopa oxidase
                      monophenol monooxidase
                      monophenol monooxygenase
                      monophenol oxidase
                      o-diphenolase
                      phenol oxidase
                      polyaromatic oxidase
                      polyphenol oxidase
                      pyrocatechol oxidase
                      chlorogenic acid oxidase
                      o-diphenol oxidase
                      o-diphenol oxidoreductase
                      tyrosine-dopa oxidase
                      o-diphenol:O2 oxidoreductase
                      o-diphenol:oxygen oxidoreductase
                      N-acetyl-6-hydroxytryptophan oxidase
                      monophenol,L-dopa:oxygen oxidoreductase

19. 2.3.2.6 enzyme   leucyl, phenylalanine-tRNA-protein transferase
                      leucyl-phenylalanine-transfer ribonucleate-protein  aminoacyltransferase
                      leucyl-phenylalanine-transfer ribonucleate-protein transferase
                      leucyltransferase
                      L-leucyl-tRNA:protein leucyltransferase