1. 1.13.12.1 enzyme   arginine decarboxylase
                      arginine monooxygenase
                      arginine 2-monooxygenase
                      arginine decarboxy-oxidase
                      arginine oxygenase (decarboxylating)
                      L-arginine:oxygen 2-oxidoreductase (decarboxylating)

2. 1.1.1.42 enzyme   oxalosuccinate decarboxylase
                      oxalsuccinic decarboxylase
                      NADP isocitric dehydrogenase
                      isocitrate (NADP) dehydrogenase
                      isocitrate dehydrogenase (NADP)
                      isocitrate dehydrogenase (NADP+)
                      NADP+-linked isocitrate dehydrogenase
                      NADP-dependent isocitrate dehydrogenase
                      NADP-dependent isocitric dehydrogenase
                      NADP-linked isocitrate dehydrogenase
                      NADP-specific isocitrate dehydrogenase
                      isocitrate dehydrogenase (NADP-dependent)
                      isocitrate:NADP+ oxidoreductase (decarboxylating)
                      isocitrate (nicotinamide adenine dinucleotide phosphate)  dehydrogenase

3. 1.2.4.1 enzyme   pyruvate decarboxylase
                      pyruvate dehydrogenase
                      pyruvic dehydrogenase
                      pyruvate dehydrogenase (lipoamide)
                      pyruvate dehydrogenase complex
                      pyruvic acid dehydrogenase
                      pyruvate dehydrogenase (acetyl-transferring)
                      MtPDC (mitochondrial pyruvate dehydogenase complex)
                      pyruvate:lipoamide 2-oxidoreductase (decarboxylating and  acceptor-acetylating)
                      pyruvate:[dihydrolipoyllysine-residue acetyltransferase]-lipoyllysine 2-oxidoreductase (decarboxylating, acceptor-acetylating)

4. 1.2.4.2 enzyme   oxoglutarate decarboxylase
                      AKGDH
                      OGDC
                      ketoglutaric dehydrogenase
                      oxoglutarate dehydrogenase
                      2-ketoglutarate dehydrogenase
                      2-oxoglutarate dehydrogenase
                      alpha-ketoglutarate dehydrogenase
                      alpha-ketoglutaric dehydrogenase
                      alpha-oxoglutarate dehydrogenase
                      alphaketoglutaric acid dehydrogenase
                      oxoglutarate dehydrogenase (lipoamide)
                      2-oxoglutarate: lipoate oxidoreductase
                      oxoglutarate dehydrogenase (succinyl-transferring)
                      2-oxoglutarate:lipoamide 2-oxidoreductase (decarboxylating and  acceptor-succinylating)
                      2-oxoglutarate:[dihydrolipoyllysine-residue succinyltransferase]-lipoyllysine 2-oxidoreductase (decarboxylating, acceptor-succinylating)

5. 1.4.4.2 enzyme   glycine decarboxylase
                      P-protein
                      protein P1
                      glycine dehydrogenase (decarboxylating)
                      glycine-cleavage complex
                      glycine:lipoylprotein oxidoreductase (decarboxylating and  acceptor-aminomethylating)
                      glycine:H-protein-lipoyllysine oxidoreductase (decarboxylating, acceptor-amino-methylating)

6. 4.1.1.1 enzyme   pyruvate decarboxylase
                      pyruvic decarboxylase
                      alpha-carboxylase
                      alpha-ketoacid carboxylase
                      2-oxo-acid carboxy-lyase

7. 4.1.1.11 enzyme   aspartate 1-decarboxylase
                      aspartate alpha-decarboxylase
                      aspartic alpha-decarboxylase
                      L-aspartate alpha-decarboxylase
                      L-aspartate 1-carboxy-lyase

8. 4.1.1.12 enzyme   aminomalonic decarboxylase
                      aspartate 4-decarboxylase
                      aspartate beta-decarboxylase
                      aspartate omega-decarboxylase
                      aspartic beta-decarboxylase
                      aspartic omega-decarboxylase
                      L-aspartate beta-decarboxylase
                      desulfinase
                      cysteine sulfinic desulfinase
                      L-aspartate 4-carboxy-lyase
                      L-cysteine sulfinate acid desulfinase

9. 4.1.1.14 enzyme   leucine decarboxylase
                      valine decarboxylase
                      L-valine carboxy-lyase

10. 4.1.1.15 enzyme   glutamate decarboxylase
                      L-glutamic decarboxylase
                      aspartate 1-decarboxylase
                      aspartic alpha-decarboxylase
                      cysteic acid decarboxylase
                      gamma-glutamate decarboxylase
                      L-aspartate-alpha-decarboxylase
                      L-glutamate alpha-decarboxylase
                      L-glutamic acid decarboxylase
                      L-glutamate 1-carboxy-lyase

11. 4.1.1.16 enzyme   hydroxyglutamate decarboxylase
                      3-hydroxy-L-glutamate 1-carboxy-lyase

12. 4.1.1.17 enzyme   ornithine decarboxylase
                      L-ornithine carboxy-lyase

13. 4.1.1.18 enzyme   lysine decarboxylase
                      L-lysine carboxy-lyase

14. 4.1.1.19 enzyme   arginine decarboxylase
                      L-arginine carboxy-lyase

15. 4.1.1.2 enzyme   oxalate decarboxylase
                      oxalate carboxy-lyase

16. 4.1.1.20 enzyme   DAP-decarboxylase
                      diaminopimelate decarboxylase
                      diaminopimelic acid decarboxylase
                      meso-diaminopimelate decarboxylase
                      meso-2,6-diaminoheptanedioate carboxy-lyase

17. 4.1.1.22 enzyme   histidine decarboxylase
                      L-histidine decarboxylase
                      L-histidine carboxy-lyase

18. 4.1.1.23 enzyme   OMP decarboxylase
                      orotate decarboxylase
                      orotic decarboxylase
                      orotidylic decarboxylase
                      orotodylate decarboxylase
                      orotate monophosphate decarboxylase
                      orotidine monophosphate decarboxylase
                      orotidine phosphate decarboxylase
                      orotidylic acid decarboxylase
                      orotidine 5'-phosphate decarboxylase
                      orotidine-5'-monophosphate decarboxylase
                      orotidine-5'-phosphate decarboxylase
                      ODCase
                      OMP-DC
                      orotidine-5'-phosphate carboxy-lyase

19. 4.1.1.24 enzyme   aminobenzoate decarboxylase
                      aminobenzoate carboxy-lyase

20. 4.1.1.25 enzyme   tyrosine decarboxylase
                      L-(-)-tyrosine apodecarboxylase
                      L-tyrosine decarboxylase
                      L-tyrosine carboxy-lyase

21. 4.1.1.28 enzyme   DOPA decarboxylase
                      hydroxytryptophan decarboxylase
                      tryptophan decarboxylase
                      5-hydroxytryptophan decarboxylase
                      L-DOPA decarboxylase
                      aromatic amino acid decarboxylase
                      aromatic-L-amino-acid decarboxylase
                      aromatic-L-amino-acid carboxy-lyase

22. 4.1.1.29 enzyme   cysteic decarboxylase
                      cysteinesulfinate decarboxylase
                      sulfinoalanine decarboxylase
                      sulfoalanine decarboxylase
                      cysteine-sulfinate decarboxylase
                      cysteinesulfinic acid decarboxylase
                      L-cysteinesulfinic acid decarboxylase
                      CSAD
                      CADCase/CSADCase
                      3-sulfino-L-alanine carboxy-lyase

23. 4.1.1.3 enzyme   oxaloacetate decarboxylase
                      oxalacetic acid decarboxylase
                      oxalate beta-decarboxylase
                      oxaloacetate beta-decarboxylase
                      oxaloacetate carboxy-lyase

24. 4.1.1.30 enzyme   pantothenoylcysteine decarboxylase
                      pantothenylcysteine decarboxylase
                      N-[(R)-pantothenoyl]-L-cysteine carboxy-lyase

25. 4.1.1.33 enzyme   diphosphomevalonate decarboxylase
                      pyrophosphomevalonate decarboxylase
                      5-pyrophosphomevalonate decarboxylase
                      pyrophosphomevalonic acid decarboxylase
                      mevalonate 5-diphosphate decarboxylase
                      mevalonate-5-pyrophosphate decarboxylase
                      ATP:(R)-5-diphosphomevalonate carboxy-lyase (dehydrating)

26. 4.1.1.36 enzyme   PPC-decarboxylase
                      phosphopantothenoylcysteine decarboxylase
                      4-phosphopantotheoylcysteine decarboxylase
                      4-phosphopantothenoyl-L-cysteine decarboxylase
                      N-[(R)-4'-phosphopantothenoyl]-L-cysteine carboxy-lyase

27. 4.1.1.37 enzyme   porphyrinogen decarboxylase
                      uroporphyrinogen decarboxylase
                      uroporphyrinogen III decarboxylase
                      porphyrinogen carboxy-lyase
                      uroporphyrinogen-III carboxy-lyase

28. 4.1.1.4 enzyme   acetoacetate decarboxylase
                      acetoacetic acid decarboxylase
                      acetoacetate carboxy-lyase

29. 4.1.1.40 enzyme   hydroxypyruvate decarboxylase
                      hydroxypyruvate carboxy-lyase

30. 4.1.1.42 enzyme   carnitine decarboxylase
                      carnitine carboxy-lyase

31. 4.1.1.43 enzyme   phenylpyruvate decarboxylase
                      phenylpyruvate carboxy-lyase

32. 4.1.1.44 enzyme   4-carboxymuconolactone decarboxylase
                      gamma-4-carboxymuconolactone decarboxylase
                      4-carboxymuconolactone carboxy-lyase

33. 4.1.1.46 enzyme   o-pyrocatechuate decarboxylase
                      2,3-dihydroxybenzoate carboxy-lyase

34. 4.1.1.5 enzyme   acetolactate decarboxylase
                      alpha-acetolactate decarboxylase
                      (S)-2-hydroxy-2-methyl-3-oxobutanoate carboxy-lyase

35. 4.1.1.50 enzyme   adenosylmethionine decarboxylase
                      S-adenosylmethionine decarboxylase
                      S-adenosyl-L-methionine decarboxylase
                      S-adenosyl-L-methionine carboxy-lyase

36. 4.1.1.52 enzyme   6-MSA decarboxylase
                      6-methylsalicylate decarboxylase
                      6-methylsalicylic acid (2,6-cresotic acid) decarboxylase
                      6-methylsalicylate carboxy-lyase

37. 4.1.1.53 enzyme   phenylalanine decarboxylase
                      L-phenylalanine decarboxylase
                      aromatic L-amino acid decarboxylase
                      L-phenylalanine carboxy-lyase

38. 4.1.1.54 enzyme   dihydroxyfumarate decarboxylase
                      dihydroxyfumarate carboxy-lyase

39. 4.1.1.55 enzyme   4,5-dihydroxyphthalate decarboxylase
                      4,5-dihydroxyphthalate carboxy-lyase

40. 4.1.1.56 enzyme   3-oxolaurate decarboxylase
                      beta-ketoacyl decarboxylase
                      beta-ketolaurate decarboxylase
                      3-oxododecanoate carboxy-lyase

41. 4.1.1.57 enzyme   methionine decarboxylase
                      L-methionine decarboxylase
                      L-methionine carboxy-lyase

42. 4.1.1.58 enzyme   orsellinate decarboxylase
                      orsellinate carboxy-lyase

43. 4.1.1.59 enzyme   gallate decarboxylase
                      gallic acid decarboxylase
                      gallate carboxy-lyase

44. 4.1.1.6 enzyme   aconitate decarboxylase
                      cis-aconitic decarboxylase (CAD)
                      cis-aconitate carboxy-lyase

45. 4.1.1.60 enzyme   stipitatonate decarboxylase
                      stipitatonate carboxy-lyase (decyclizing)

46. 4.1.1.61 enzyme   4-hydroxybenzoate decarboxylase
                      p-hydroxybenzoate decarboxylase
                      4-hydroxybenzoate carboxy-lyase

47. 4.1.1.62 enzyme   gentisate decarboxylase
                      2,5-dihydroxybenzoate decarboxylase
                      gentisate carboxy-lyase

48. 4.1.1.63 enzyme   protocatechuate decarboxylase
                      3,4-dihydrobenzoate decarboxylase
                      protocatechuate carboxy-lyase

49. 4.1.1.65 enzyme   PS decarboxylase
                      phosphatidylserine decarboxylase
                      phosphatidyl-L-serine carboxy-lyase

50. 4.1.1.69 enzyme   3,4-dihydroxyphthalate decarboxylase
                      3,4-dihydroxyphthalate carboxy-lyase

51. 4.1.1.7 enzyme   benzoylformate decarboxylase
                      phenylglyoxylate decarboxylase
                      benzoylformate carboxy-lyase

52. 4.1.1.71 enzyme   oxoglutarate decarboxylase
                      2-oxoglutarate decarboxylase
                      alpha-ketoglutarate decarboxylase
                      alpha-ketoglutaric decarboxylase
                      pre-2-oxoglutarate decarboxylase
                      2-oxoglutarate carboxy-lyase

53. 4.1.1.73 enzyme   tartrate decarboxylase
                      (R,R)-tartrate carboxy-lyase

54. 4.1.1.74 enzyme   indolepyruvate decarboxylase
                      indol-3-yl-pyruvate carboxy-lyase

55. 4.1.1.76 enzyme   arylmalonate decarboxylase
                      AMDASE
                      2-aryl-2-methylmalonate carboxy-lyase

56. 4.1.1.77 enzyme   4-oxalocrotonate decarboxylase
                      4-oxalocrotonate carboxy-lyase

57. 4.1.1.78 enzyme   acetylenedicarboxylate decarboxylase
                      acetylenedicarboxylate hydrase
                      acetylenedicarboxylate hydratase
                      acetylenedicarboxylate carboxy-lyase

58. 4.1.1.79 enzyme   sulfopyruvate decarboxylase
                      sulfopyruvate carboxy-lyase

59. 4.1.1.80 enzyme   4-hydroxyphenylpyruvate decarboxylase
                      4-hydroxyphenylpyruvate carboxy-lyase

60. 4.1.1.82 enzyme   phosphonopyruvate decarboxylase
                      3-phosphonopyruvate carboxy-lyase

61. 4.1.1.83 enzyme   4-hydroxyphenylacetate decarboxylase
                      p-hydroxyphenylacetate decarboxylase
                      4-Hpd
                      p-Hpd
                      4-hydroxyphenylacetate carboxy-lyase

62. 4.1.1.84 enzyme   D-dopachrome decarboxylase
                      D-tautomerase
                      D-dopachrome tautomerase
                      phenylpyruvate tautomerase II
                      D-dopachrome carboxy-lyase

63. 4.1.1.86 enzyme   diaminobutyrate decarboxylase
                      L-2,4-diaminobutyrate decarboxylase
                      DABA DC
                      L-2,4-diaminobutanoate carboxy-lyase

64. 1.13.12.4 enzyme   lactate oxidative decarboxylase
                      lactate monooxygenase
                      lactate oxidase
                      lactate oxygenase
                      lactic oxidase
                      lactic oxygenase
                      L-lactate monooxygenase
                      lactate 2-monooxygenase
                      L-lactate-2-monooxygenase
                      (S)-lactate:oxygen 2-oxidoreductase (decarboxylating)

65. 4.1.1.34 enzyme   dehydro-L-gulonate decarboxylase
                      keto-L-gulonate decarboxylase
                      3-keto-L-gulonate decarboxylase
                      3-dehydro-L-gulonate carboxy-lyase

66. 4.1.1.35 enzyme   UDP-glucuronate decarboxylase
                      uridine-diphosphoglucuronate decarboxylase
                      UDP-D-glucuronate carboxy-lyase

67. 4.1.1.41 enzyme   methylmalonyl-CoA decarboxylase
                      methylmalonyl-coenzyme A decarboxylase
                      propionyl-CoA carboxylase
                      propionyl coenzyme A carboxylase
                      (S)-methylmalonyl-CoA carboxy-lyase
                      (S)-2-methyl-3-oxopropanoyl-CoA carboxy-lyase [incorrect]

68. 4.1.1.45 enzyme   aminocarboxymuconate-semialdehyde decarboxylase
                      picolinic acid decarboxylase
                      alpha-amino-beta-carboxymuconate-epsilon-semialdehade decarboxylase
                      alpha-amino-beta-carboxymuconate-epsilon-semialdehyde  beta-decarboxylase
                      picolinic acid carboxylase
                      2-amino-3-(3-oxoprop-2-enyl)but-2-enedioate carboxy-lyase

69. 4.1.1.64 enzyme   dialkylamino-acid decarboxylase (pyruvate)
                      2,2-dialkylglycine decarboxylase (pyruvate)
                      dialkyl amino acid (pyruvate) decarboxylase
                      L-alanine-alpha-ketobutyrate aminotransferase
                      alpha-dialkyl amino acid transaminase
                      2,2-dialkylglycine carboxy-lyase (amino-transferring)
                      2,2-dialkyl-2-amino acid-pyruvate aminotransferase

70. 4.1.1.66 enzyme   uracil-5-carboxylate decarboxylase
                      uracil-5-carboxylic acid decarboxylase
                      uracil-5-carboxylate carboxy-lyase

71. 4.1.1.67 enzyme   UDP-galacturonate decarboxylase
                      UDP-galacturonic acid decarboxylase
                      UDPGalUA carboxy lyase
                      UDP-D-galacturonate carboxy-lyase

72. 4.1.1.70 enzyme   glutaconyl-CoA decarboxylase
                      glutaconyl coenzyme A decarboxylase
                      pent-2-enoyl-CoA carboxy-lyase
                      4-carboxybut-2-enoyl-CoA carboxy-lyase

73. 4.1.1.75 enzyme   alpha-ketoarginine decarboxylase
                      5-guanidino-2-oxopentanoate decarboxylase
                      2-oxo-5-guanidinopentanoate carboxy-lyase

74. 4.1.1.8 enzyme   oxalyl-CoA decarboxylase
                      oxalyl coenzyme A decarboxylase
                      oxalyl-CoA carboxy-lyase

75. 4.1.1.81 enzyme   threonine-phosphate decarboxylase
                      L-threonine-O-3-phosphate decarboxylase
                      CobD
                      L-threonine-O-3-phosphate carboxy-lyase

76. 4.1.1.9 enzyme   malonyl-CoA decarboxylase
                      malonyl coenzyme A decarboxylase
                      malonyl-CoA carboxy-lyase

77. 1.1.1.170 enzyme   sterol 4alpha-carboxylic decarboxylase
                      3beta-hydroxy-4beta-methylcholestenoate dehydrogenase
                      sterol-4alpha-carboxylate 3-dehydrogenase (decarboxylating)
                      3beta-hydroxy-4beta-methylcholestenecarboxylate 3-dehydrogenase  (decarboxylating)
                      3beta-hydroxy-4beta-methyl-5alpha-cholest-7-ene-4alpha- carboxylate:NAD(P)+ 3-oxidoreductase (decarboxylating)

78. 1.2.1.18 enzyme   malonic semialdehyde oxidative decarboxylase
                      malonate-semialdehyde dehydrogenase (acetylating)
                      3-oxopropanoate:NAD(P)+ oxidoreductase (decarboxylating, CoA-acetylating)

79. 2.5.1.64 enzyme   2-oxoglutarate decarboxylase/SHCHC synthase
                      2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate  synthase-alpha-ketoglutarate decarboxylase
                      MenD
                      SHCHC synthase
                      isochorismate:2-oxoglutarate:cyclodienyltransferase (decarboxylating, pyruvate-forming)
                      2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase
                      6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate synthase
                      2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylic acid synthase
                      (1R,6R)-2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate  synthase

80. 4.1.1.51 enzyme   3-hydroxy-2-methylpyridine-4,5-dicarboxylate 4-decarboxylase
                      3-hydroxy-2-methylpyridine-4,5-dicarboxylate 4-carboxy-lyase

81. 4.1.1.68 enzyme   5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase
                      5-carboxymethyl-2-oxo-hex-3-ene-1,6-dioate decarboxylase
                      5-oxopent-3-ene-1,2,5-tricarboxylate carboxy-lyase

82. 4.1.1.72 enzyme   branched-chain keto acid decarboxylase
                      branched-chain oxo acid decarboxylase
                      branched-chain-2-oxoacid decarboxylase
                      branched-chain alpha-keto acid decarboxylase
                      BCKA
                      (3S)-3-methyl-2-oxopentanoate carboxy-lyase

83. 4.1.1.85 enzyme   3-dehydro-L-gulonate-6-phosphate decarboxylase
                      3-keto-L-gulonate 6-phosphate decarboxylase
                      KGPDC
                      SgaH
                      SgbH
                      UlaD
                      3-dehydro-L-gulonate-6-phosphate carboxy-lyase