1. 2.7.3.8 enzyme   ammonia kinase
                      ATP:ammonia phosphotransferase
                      phosphoramidate-ADP-phosphotransferase
                      phosphoramidate-adenosine diphosphate phosphotransferase

2. 1.7.2.2 enzyme   ammonia:ferricytochrome-c oxidoreductase
                      nitrite reductase (cytochrome; ammonia-forming)
                      multiheme nitrite reductase
                      cytochrome c nitrite reductase

3. 1.7.7.1 enzyme   ammonia:ferredoxin oxidoreductase
                      ferredoxin-nitrite reductase

4. 1.7.99.1 enzyme   ammonia:(acceptor) oxidoreductase
                      hydroxylamine reductase
                      hydroxylamine (acceptor) reductase

5. 2.7.7.51 enzyme   adenylylsulfate-ammonia adenylyltransferase
                      adenylylsulfate:ammonia adenylyltransferase
                      APSAT

6. 4.3.1.1 enzyme   aspartate ammonia-lyase
                      L-aspartate ammonia-lyase
                      aspartase
                      L-aspartase
                      fumaric aminase

7. 4.3.1.11 enzyme   dihydroxyphenylalanine ammonia-lyase
                      3,4-dihydroxy-L-phenylalanine ammonia-lyase
                      beta-(3,4-dihydroxyphenyl)-L-alanine (DOPA) ammonia-lyase

8. 4.3.1.15 enzyme   diaminopropionate ammonia-lyase
                      2,3-diaminopropionate ammonia-lyase
                      alpha,beta-diaminopropionate ammonia-lyase
                      diaminopropionatase

9. 4.3.1.17 enzyme   L-serine ammonia-lyase
                      L-serine ammonia-lyase
                      serine deaminase
                      L-hydroxyaminoacid dehydratase
                      L-serine deaminase
                      L-serine dehydratase
                      L-serine hydro-lyase (deaminating)

10. 4.3.1.18 enzyme   D-serine ammonia-lyase
                      D-serine ammonia-lyase
                      D-hydroxyaminoacid dehydratase
                      D-serine deaminase
                      D-serine dehydrase
                      D-serine hydrolase
                      D-serine dehydratase (deaminating)
                      D-hydroxy amino acid dehydratase
                      D-serine hydro-lyase (deaminating)

11. 4.3.1.19 enzyme   threonine ammonia-lyase
                      L-threonine ammonia-lyase
                      serine deaminase
                      threonine deaminase
                      threonine dehydrase
                      threonine dehydratase
                      L-serine dehydratase
                      L-threonine deaminase
                      L-threonine dehydratase
                      L-threonine hydro-lyase (deaminating)

12. 4.3.1.2 enzyme   methylaspartate ammonia-lyase
                      L-threo-3-methylaspartate ammonia-lyase
                      3-methylaspartase
                      beta-methylaspartase

13. 4.3.1.3 enzyme   histidine ammonia-lyase
                      L-histidine ammonia-lyase
                      histidase
                      histidinase
                      histidine alpha-deaminase

14. 4.3.1.5 enzyme   phenylalanine ammonia-lyase
                      tyrosine ammonia-lyase
                      L-phenylalanine ammonia-lyase
                      L-tyrosine ammonia-lyase
                      PAL
                      tyrase
                      phenylalanine deaminase
                      phenylalanine ammonium-lyase

15. 4.3.1.7 enzyme   ethanolamine ammonia-lyase
                      ethanolamine ammonia-lyase
                      ethanolamine deaminase

16. 4.3.1.9 enzyme   aminodeoxygluconate ammonia-lyase
                      glucosaminate ammonia-lyase
                      D-glucosaminate ammonia-lyase (isomerizing)
                      2-amino-2-deoxy-D-gluconate ammonia-lyase
                      aminodeoxygluconate dehydratase
                      glucosaminic dehydrase
                      D-glucosaminate dehydratase
                      D-glucosaminic acid dehydrase
                      2-amino-2-deoxy-D-gluconate hydro-lyase (deaminating)

17. 6.3.1.1 enzyme   aspartate-ammonia ligase
                      L-aspartate:ammonia ligase (AMP-forming)
                      asparagine synthetase
                      L-asparagine synthetase

18. 6.3.1.2 enzyme   glutamate-ammonia ligase
                      L-glutamate:ammonia ligase (ADP-forming)
                      glutamine synthetase
                      glutamylhydroxamic synthetase
                      L-glutamine synthetase

19. 6.3.1.7 enzyme   4-methyleneglutamate-ammonia ligase
                      4-methylene-L-glutamate:ammonia ligase (AMP-forming)
                      4-methyleneglutamine synthetase

20. 6.3.2.22 enzyme   diphthine-ammonia ligase
                      diphthine:ammonia ligase (ADP-forming)
                      diphthamide synthase
                      diphthamide synthetase

21. 6.3.4.16 enzyme   carbamoylphosphate synthase (ammonia)
                      carbamoyl-phosphate synthase (ammonia)
                      carbon-dioxide-ammonia ligase
                      carbon-dioxide:ammonia ligase (ADP-forming, carbamate-phosphorylating)
                      carbamoylphosphate synthase
                      carbamylphosphate synthetase
                      carbmoylphosphate synthetase
                      carbamylphosphate synthetase I

22. 6.3.4.2 enzyme   UTP-ammonia ligase
                      UTP:ammonia ligase (ADP-forming)
                      CTP synthase
                      cytidine triphosphate synthetase
                      uridine triphosphate aminase
                      cytidine 5'-triphosphate synthetase

23. 2.5.1.61 enzyme   porphobilinogen ammonia-lyase (polymerizing)
                      HMB-synthase
                      hydroxymethylbilane synthase
                      porphobilinogen deaminase
                      uroporphyrinogen synthase
                      uroporphyrinogen synthetase
                      pre-uroporphyrinogen synthase
                      uroporphyrinogen I synthase
                      uroporphyrinogen I synthetase
                      (4-[2-carboxyethyl]-3-[carboxymethyl]pyrrol-2-yl)methyltransferase (hydrolysing)

24. 2.7.7.42 enzyme   [glutamate-ammonia-ligase] adenylyltransferase
                      ATP:[L-glutamate:ammonia ligase (ADP-forming)] adenylyltransferase
                      glutamine-synthetase adenylyltransferase
                      ATP:glutamine synthetase adenylyltransferase
                      adenosine triphosphate:glutamine synthetase adenylyltransferase

25. 4.3.1.10 enzyme   serine-sulfate ammonia-lyase
                      L-serine-O-sulfate ammonia-lyase (pyruvate-forming)
                      (L-SOS)lyase

26. 4.3.1.12 enzyme   L-ornithine ammonia-lyase (cyclizing)
                      ornithine cyclase
                      ornithine cyclodeaminase
                      ornithine cyclase (deaminating)

27. 4.3.1.13 enzyme   carbamoyl-serine ammonia-lyase
                      O-carbamoyl-L-serine ammonia-lyase (pyruvate-forming)
                      carbamoylserine deaminase
                      O-carbamoyl-L-serine deaminase

28. 4.3.1.14 enzyme   3-aminobutyryl-CoA ammonia-lyase
                      L-3-aminobutyryl-CoA ammonia-lyase
                      L-3-aminobutyryl-CoA deaminase

29. 4.3.1.16 enzyme   threo-3-hydroxyaspartate ammonia-lyase
                      threo-3-hydroxy-L-aspartate ammonia-lyase
                      threo-3-hydroxyaspartate dehydratase
                      L-threo-3-hydroxyaspartate dehydratase

30. 4.3.1.20 enzyme   erythro-3-hydroxyaspartate ammonia-lyase
                      erythro-3-hydroxy-L(s)-aspartate ammonia-lyase
                      3-hydroxyaspartate dehydratase
                      erythro-3-hydroxyaspartate dehydratase
                      erythro-beta-hydroxyaspartate dehydratase
                      erythro-3-hydroxy-L(s)-aspartate hydro-lyase (deaminating)

31. 4.3.1.4 enzyme   5-formimidoyltetrahydrofolate ammonia-lyase (cyclizing)
                      formimidoyltetrahydrofolate cyclodeaminase
                      formiminotetrahydrofolate cyclodeaminase

32. 6.3.4.1 enzyme   xanthosine-5'-phosphate-ammonia ligase
                      xanthosine-5'-phosphate:ammonia ligase (AMP-forming)
                      GMP synthase
                      XMP aminase
                      guanylate synthetase
                      xanthosine 5'-monophosphate aminase

33. 6.3.4.7 enzyme   ammonia-ribose 5-phosphate aminotransferase
                      ribose-5-phosphate-ammonia ligase
                      ribose-5-phosphate:ammonia ligase (ADP-forming)
                      5-phosphoribosylamine synthetase
                      ribose 5-phosphate aminotransferase

34. 2.1.2.10 enzyme   S-aminomethyldihydrolipoylprotein:(6S)-tetrahydrofolate  aminomethyltransferase (ammonia-forming)
                      protein-S-aminomethyldihydrolipoyllysine:tetrahydrofolate aminomethyltransferase (ammonia-forming)
                      aminomethyltransferase
                      T-protein
                      glycine synthase
                      tetrahydrofolate aminomethyltransferase

35. 2.5.1.44 enzyme   putrescine:putrescine 4-aminobutyltransferase (ammonia-forming)
                      homospermidine synthase

36. 3.1.4.15 enzyme   adenylyl-[glutamate-ammonia ligase] hydrolase
                      adenylyl-[L-glutamate:ammonia ligase (ADP-forming)] adenylylhydrolase
                      adenylyl(glutamine synthetase) hydrolase
                      adenylyl-[glutamine-synthetase]hydrolase

37. 4.3.1.6 enzyme   beta-alanyl-CoA ammonia-lyase
                      beta-alanyl-CoA ammonia-lyase
                      beta-alanyl coenzyme A ammonia-lyase

38. 6.3.1.4 enzyme   aspartate-ammonia ligase (ADP-forming)
                      L-aspartate:ammonia ligase (ADP-forming)
                      asparagine synthetase (ADP-forming)
                      asparagine synthetase (adenosine diphosphate-forming)

39. 6.3.1.5 enzyme   deamido-NAD+:ammonia ligase (AMP-forming)
                      NAD synthase
                      NAD synthetase
                      NAD+ synthase
                      diphosphopyridine nucleotide synthetase
                      nicotinamide adenine dinucleotide synthetase

40. 1.14.12.14 enzyme   2-aminobenzenesulfonate,NADH:oxygen oxidoreductase (2,3-hydroxylating, ammonia-forming)
                      2-aminobenzenesulfonate 2,3-dioxygenase
                      2-aminosulfobenzene 2,3-dioxygenase

41. 1.21.4.2 enzyme   acetyl-phosphate ammonia:thioredoxin disulfide oxidoreductase (glycine-forming)
                      glycine reductase