1. 3.3.2.3 enzyme   epoxide hydratase
                      arene-oxide hydratase
                      benzo(a)pyrene-4,5-epoxide hydratase
                      benzo[a]pyrene-4,5-oxide hydratase
                      epoxide hydrolase
                      epoxide hydrolase
                      aryl epoxide hydrase
                      cis-epoxide hydrolase
                      xenobiotic epoxide hydrolase
                      trans-stilbene oxide hydrolase

2. 4.1.1.78 enzyme   acetylenedicarboxylate hydratase
                      acetylenedicarboxylate decarboxylase
                      acetylenedicarboxylate hydrase
                      acetylenedicarboxylate carboxy-lyase

3. 4.2.1.103 enzyme   isonitrile hydratase
                      cyclohexyl-isocyanide hydratase
                      N-cyclohexylformamide hydro-lyase

4. 4.2.1.104 enzyme   cyanate hydratase
                      cyanase
                      cyanate aminohydrolase
                      cyanate hydrolase
                      cyanate lyase
                      carbamate hydro-lyase

5. 4.2.1.107 enzyme   46 kDa hydratase 2
                      3alpha,7alpha,12alpha-trihydroxy-5beta-cholest-24-enoyl-CoA hydratase
                      (24R,25R)-3alpha,7alpha,12alpha,24-tetrahydroxy-5beta-cholestanoyl- CoA hydro-lyase

6. 4.2.1.11 enzyme   phosphoenolpyruvate hydratase
                      phosphopyruvate hydratase
                      2-phosphoglycerate dehydratase
                      2-phosphoglyceric dehydratase
                      enolase
                      gamma-enolase
                      2-phosphoglycerate enolase
                      14-3-2-protein
                      nervous-system specific enolase
                      2-phospho-D-glycerate hydro-lyase

7. 4.2.1.2 enzyme   fumarate hydratase
                      fumarase
                      (S)-malate hydro-lyase
                      L-malate hydro-lyase

8. 4.2.1.27 enzyme   acetylenecarboxylate hydratase
                      acetylenemonocarboxylate hydratase
                      alkynoate hydratase
                      malonate-semialdehyde dehydratase
                      acetylenemonocarboxylate hydrase
                      acetylenemonocarboxylic acid hydrase
                      3-oxopropanoate hydro-lyase

9. 4.2.1.3 enzyme   aconitate hydratase
                      aconitase
                      cis-aconitase
                      citrate(isocitrate) hydro-lyase

10. 4.2.1.31 enzyme   maleate hydratase
                      malease
                      (R)-malate hydro-lyase
                      D-malate hydro-lyase

11. 4.2.1.34 enzyme   citramalate dehydratase
                      mesaconate hydratase
                      (S)-2-methylmalate dehydratase
                      mesaconase
                      mesaconate mesaconase
                      (+)-citramalate hydro-lyase
                      (+)-citramalic hydro-lyase
                      L-citramalate hydrolase
                      (S)-2-methylmalate hydro-lyase

12. 4.2.1.35 enzyme   citraconate hydratase
                      (R)-2-methylmalate dehydratase
                      citraconase
                      (-)-citramalate hydro-lyase
                      citramalate hydro-lyase
                      (R)-2-methylmalate hydro-lyase

13. 4.2.1.36 enzyme   homoaconitate hydratase
                      homoaconitase
                      cis-homoaconitase
                      2-hydroxybutane-1,2,4-tricarboxylate hydro-lyase

14. 4.2.1.49 enzyme   urocanate hydratase
                      urocanase
                      3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate hydro-lyase

15. 4.2.1.53 enzyme   oleate hydratase
                      (R)-10-hydroxystearate 10-hydro-lyase

16. 4.2.1.65 enzyme   3-cyanoalanine hydratase
                      beta-Cyanoalanine hydratase
                      beta-CNA nitrilase
                      beta-CNAla hydrolase
                      beta-Cyanoalanine Hydrolase
                      L-asparagine hydro-lyase

17. 4.2.1.66 enzyme   cyanide hydratase
                      formamide dehydratase
                      formamide hydro-lyase

18. 4.2.1.69 enzyme   cyanamide hydratase
                      urea hydro-lyase

19. 4.2.1.83 enzyme   oxalmesaconate hydratase
                      4-oxalmesaconate hydratase
                      gamma-oxalmesaconate hydratase
                      4-carboxy-2-oxohexenedioate hydratase
                      2-hydroxy-4-oxobutane-1,2,4-tricarboxylate 2,3-hydro-lyase
                      4-carboxy-2-oxobutane-1,2,4-tricarboxylate 2,3-hydro-lyase

20. 4.2.1.84 enzyme   acrylonitrile hydratase
                      nitrile hydratase
                      3-cyanopyridine hydratase
                      aliphatic nitrile hydratase
                      NHase
                      nitrilase
                      H-NHase
                      L-NHase
                      nitrile hydro-lyase

21. 4.2.1.85 enzyme   dimethylmaleate hydratase
                      (2R,3S)-2,3-dimethylmalate hydro-lyase

22. 4.2.1.95 enzyme   kievitone hydratase
                      KHase
                      kievitone-hydrate hydro-lyase

23. 4.2.1.97 enzyme   phaseollidin hydratase
                      phaseollidin-hydrate hydro-lyase

24. 3.3.2.10 enzyme   epoxide hydratase (ambiguous)
                      arene-oxide hydratase (ambiguous)
                      sEH
                      cytosolic epoxide hydrolase
                      epoxide hydrase (ambiguous)
                      soluble epoxide hydrolase
                      aryl epoxide hydrase (ambiguous)
                      trans-stilbene oxide hydrolase

25. 3.3.2.4 enzyme   trans-epoxysuccinate hydratase
                      tartrate epoxydase
                      trans-epoxysuccinate hydrolase
                      trans-2,3-epoxysuccinate hydrolase

26. 3.3.2.9 enzyme   epoxide hydratase (ambiguous)
                      arene-oxide hydratase (ambiguous)
                      microsomal epoxide hydratase (ambiguous)
                      benzo(a)pyrene-4,5-epoxide hydratase
                      benzo[a]pyrene-4,5-oxide hydratase
                      mEH
                      epoxide hydrase
                      cis-epoxide hydrolase
                      microsomal epoxide hydrase
                      microsomal epoxide hydrolase
                      aryl epoxide hydrase (ambiguous)

27. 4.2.1.100 enzyme   dienoyl-CoA hydratase
                      cyclohexa-1,5-dienecarbonyl-CoA hydratase
                      cyclohexa-1,5-diene-1-carbonyl-CoA hydratase
                      cyclohexa-1,5-dienecarbonyl-CoA hydro-lyase

28. 4.2.1.17 enzyme   enol-CoA hydratase
                      enoyl-CoA hydratase
                      2-enoyl-CoA hydratase
                      enoyl coenzyme A hydratase
                      hydratase, enoyl coenzyme A
                      unsaturated acyl-CoA hydratase
                      D-3-hydroxyacyl-CoA dehydratase
                      short-chain enoyl-CoA hydratase
                      trans-2-enoyl-CoA hydratase
                      short chain enoyl coenzyme A hydratase
                      ECH
                      crotonase
                      crotonyl hydrase
                      enoyl hydrase
                      beta-hydroxyacid dehydrase
                      acyl coenzyme A hydrase
                      beta-hydroxyacyl-CoA dehydrase
                      2-octenoyl coenzyme A hydrase
                      enoyl coenzyme A hydrase (D)
                      enoyl coenzyme A hydrase (L)
                      (3S)-3-hydroxyacyl-CoA hydro-lyase

29. 4.2.1.18 enzyme   methylglutaconyl-CoA hydratase
                      3-methylglutaconyl CoA hydratase
                      methylglutaconyl coenzyme A hydratase
                      methylglutaconase
                      (S)-3-hydroxy-3-methylglutaryl-CoA hydro-lyase

30. 4.2.1.54 enzyme   lactoyl-CoA dehydratase
                      lactyl CoA dehydratase
                      acrylyl coenzyme A hydratase
                      lactoyl coenzyme A dehydratase
                      lactoyl-CoA hydro-lyase
                      lactyl-coenzyme A dehydrase

31. 4.2.1.56 enzyme   itaconyl-CoA hydratase
                      itaconyl coenzyme A hydratase
                      citramalyl-CoA hydro-lyase

32. 4.2.1.57 enzyme   isohexenylglutaconyl-CoA hydratase
                      beta-isohexenylglutaconyl-CoA-hydratase
                      isohexenylglutaconyl coenzyme A hydratase
                      3-hydroxy-3-isohexenylglutaryl-CoA-hydrolase
                      3-hydroxy-3-(4-methylpent-3-en-1-yl)glutaryl-CoA hydro-lyase

33. 4.2.1.80 enzyme   2-keto-4-pentenoate hydratase
                      2-oxopent-4-enoate hydratase
                      OEH 2-keto-4-pentenoate (vinylpyruvate)hydratase
                      4-hydroxy-2-oxopentanoate hydro-lyase

34. 4.2.1.101 enzyme   trans-feruloyl-CoA hydratase
                      trans-feruloyl-CoA hydro-lyase

35. 4.2.1.58 enzyme   crotonoyl-[acyl-carrier-protein] hydratase
                      crotonyl acyl carrier protein hydratase
                      3-hydroxybutyryl acyl carrier protein dehydratase
                      enoyl acyl carrier protein hydrase
                      beta-hydroxybutyryl acyl carrier protein dehydrase
                      beta-hydroxybutyryl acyl carrier protein (ACP) dehydrase
                      (3R)-3-hydroxybutanoyl-[acyl-carrier-protein] hydro-lyase

36. 4.2.1.74 enzyme   long-chain-enoyl-CoA hydratase
                      long-chain enoyl coenzyme A hydratase
                      long-chain-(3S)-3-hydroxyacyl-CoA hydro-lyase