1. 1.21.4.2 enzyme   glycine reductase
                      acetyl-phosphate ammonia:thioredoxin disulfide oxidoreductase (glycine-forming)

2. 1.4.1.10 enzyme   glycine dehydrogenase
                      glycine:NAD+ oxidoreductase (deaminating)

3. 1.4.3.19 enzyme   glycine oxidase
                      glycine:oxygen oxidoreductase (deaminating)

4. 1.4.4.2 enzyme   glycine decarboxylase
                      glycine dehydrogenase (decarboxylating)
                      glycine-cleavage complex
                      glycine:lipoylprotein oxidoreductase (decarboxylating and  acceptor-aminomethylating)
                      glycine:H-protein-lipoyllysine oxidoreductase (decarboxylating, acceptor-amino-methylating)
                      P-protein
                      protein P1

5. 2.1.1.20 enzyme   glycine methyltransferase
                      glycine N-methyltransferase
                      S-adenosyl-L-methionine:glycine methyltransferase
                      S-adenosyl-L-methionine:glycine N-methyltransferase
                      GNMT

6. 2.1.2.1 enzyme   glycine hydroxymethyltransferase
                      5,10-methylenetetrahydrofolate:glycine hydroxymethyltransferase
                      allothreonine aldolase
                      serine aldolase
                      serine hydroxymethylase
                      serine hydroxymethyltransferase
                      serine transhydroxymethylase
                      threonine aldolase
                      L-serine hydroxymethyltransferase
                      L-threonine aldolase

7. 2.1.2.10 enzyme   glycine synthase
                      aminomethyltransferase
                      T-protein
                      tetrahydrofolate aminomethyltransferase
                      S-aminomethyldihydrolipoylprotein:(6S)-tetrahydrofolate  aminomethyltransferase (ammonia-forming)
                      protein-S-aminomethyldihydrolipoyllysine:tetrahydrofolate aminomethyltransferase (ammonia-forming)

8. 2.1.2.4 enzyme   formiminoglycine formiminotransferase
                      glycine formimidoyltransferase
                      glycine formiminotransferase
                      5-formimidoyltetrahydrofolate:glycine N-formimidoyltransferase
                      FIG formiminotransferase

9. 2.1.4.1 enzyme   glycine amidinotransferase
                      glycine transamidinase
                      arginine-glycine amidinotransferase
                      arginine-glycine transamidinase
                      L-arginine:glycine amidinotransferase

10. 2.3.1.13 enzyme   glycine acyltransferase
                      glycine N-acyltransferase
                      glycine-N-acylase
                      acyl-CoA:glycine N-acyltransferase

11. 2.3.1.29 enzyme   glycine acetyltransferase
                      glycine C-acetyltransferase
                      acetyl-CoA:glycine C-acetyltransferase
                      aminoacetone synthase
                      2-amino-3-ketobutyrate CoA ligase
                      2-amino-3-ketobutyrate-CoA ligase
                      2-amino-3-ketobutyrate coenzyme A ligase

12. 2.3.1.65 enzyme   glycine N-choloyltransferase
                      glycine-taurine N-acyltransferase
                      choloyl-CoA:glycine N-choloyltransferase
                      amino acid N-choloyltransferase

13. 2.3.1.71 enzyme   glycine N-benzoyltransferase
                      benzoyl-CoA:glycine N-acyltransferase
                      benzoyl-CoA:glycine N-benzoyltransferase
                      benzoyl CoA-amino acid N-acyltransferase

14. 2.6.1.4 enzyme   glycine aminotransferase
                      glycine transaminase
                      glycine:2-oxoglutarate aminotransferase
                      glutamic-glyoxylic transaminase
                      glyoxylate-glutamate aminotransferase
                      glyoxylate-glutamic transaminase
                      L-glutamate:glyoxylate aminotransferase

15. 3.4.17.4 enzyme   glycine carboxypeptidase
                      carboxypeptidase S
                      carboxypeptidase a
                      peptidase alpha
                      yeast carboxypeptidase
                      Gly-X carboxypeptidase
                      Gly-Xaa carboxypeptidase

16. 1.4.2.1 enzyme   glycine dehydrogenase (cytochrome)
                      glycine-cytochrome c reductase
                      glycine:ferricytochrome-c oxidoreductase (deaminating)

17. 2.1.1.156 enzyme   glycine-sarcosine methyltransferase
                      glycine sarcosine N-methyltransferase
                      glycine/sarcosine N-methyltransferase
                      ApGSMT
                      GMT
                      GSMT

18. 2.6.1.35 enzyme   glycine-oxalacetate aminotransferase
                      glycine-oxaloacetate transaminase
                      glycine:oxaloacetate aminotransferase

19. 2.6.1.44 enzyme   L-alanine-glycine transaminase
                      AGT
                      alanine-glyoxylate aminotransferase
                      alanine-glyoxylate transaminase
                      alanine-glyoxylic aminotransferase
                      L-alanine:glyoxylate aminotransferase

20. 3.4.13.18 enzyme   prolylglycine dipeptidase
                      L-prolylglycine dipeptidase
                      glycyl-glycine dipeptidase
                      diglycinase
                      iminodipeptidase
                      prolinase
                      glycylleucine hydrolase
                      glycylleucine peptidase
                      peptidase A
                      prolyl dipeptidase
                      Gly-Leu hydrolase
                      Pro-X dipeptidase
                      cytosol nonspecific dipeptidase
                      glycyl-leucine dipeptidase
                      glycylleucine dipeptide hydrolase
                      non-specific dipeptidase
                      N2-beta-alanylarginine dipeptidase
                      glycyl-L-leucine dipeptidase
                      glycyl-L-leucine hydrolase
                      glycyl-L-leucine peptidase
                      human cytosolic non-specific dipeptidase
                      L-amino-acyl-L-amino-acid hydrolase

21. 3.4.22.25 enzyme   glycine-specific proteinase
                      PPIV
                      chymopapain
                      chymopapain M
                      glycyl endopeptidase
                      Papaya proteinase 4
                      papaya peptidase B
                      papaya proteinase IV

22. 3.4.24.75 enzyme   glycyl-glycine endopeptidase
                      lysostaphin

23. 6.1.1.14 enzyme   glycine-tRNA ligase
                      glycine:tRNA(Gly) ligase (AMP-forming)
                      glycyl translase
                      glycyl-tRNA synthetase
                      glycyl-transfer RNA synthetase
                      glycyl-transfer ribonucleate synthetase
                      glycyl-transfer ribonucleic acid synthetase

24. 6.3.4.13 enzyme   phosphoribosylglycineamide synthetase
                      glycineamide ribonucleotide synthetase
                      phosphoribosylamine-glycine ligase
                      5-phospho-D-ribosylamine:glycine ligase (ADP-forming)
                      GAR
                      phosphoribosylglycinamide synthetase
                      5'-phosphoribosylglycinamide synthetase
                      glycinamide ribonucleotide synthetase
                      2-amino-N-ribosylacetamide 5'-phosphate kinosynthase

25. 1.4.99.5 enzyme   glycine dehydrogenase (cyanide-forming)
                      glycine:acceptor oxidoreductase (hydrogen-cyanide-forming)
                      HCN synthase
                      hydrogen cyanide synthase

26. 3.4.21.47 enzyme   glycine-rich beta-glycoprotein
                      (CVF)-dependent glycine-rich-beta-glucoprotein
                      C3 convertase
                      C3 proactivator
                      C5 convertase
                      CVF,Bb
                      (C3b)n,Bb
                      heat-labile factor
                      proenzyme factor B
                      properdin factor B
                      C3b,Bb,CVF,Bb,C5 convertase
                      alternative complement pathway C3(C5) convertase
                      alternative-complement-pathway C3/C5 convertase
                      cobra venom factor-dependent C3 convertase
                      complement component C3/C5 convertase (alternative)
                      complement C 3(C 5) convertase (amplification)

27. 2.3.1.37 enzyme   succinyl-CoA:glycine C-succinyltransferase (decarboxylating)
                      ALAS
                      ALA synthase
                      ALA synthetase
                      aminolevulinate synthase
                      aminolevulinate synthetase
                      aminolevulinic synthetase
                      5-aminolevulinate synthase
                      5-aminolevulinate synthetase
                      aminolevulinic acid synthase
                      aminolevulinic acid synthetase
                      delta-aminolevulinate synthase
                      delta-aminolevulinate synthetase
                      delta-aminolevulinic synthetase
                      5-aminolevulinic acid synthetase
                      alpha-aminolevulinic acid synthase
                      delta-aminolevulinic acid synthase
                      delta-aminolevulinic acid synthetase

28. 4.1.3.14 enzyme   erythro-beta-hydroxyaspartate glycine-lyase
                      3-hydroxyaspartate aldolase
                      erythro-beta-hydroxyaspartate aldolase
                      erythro-3-hydroxy-L(s)-aspartate glyoxylate-lyase

29. 1.5.1.22 enzyme   N-(carboxymethyl)-D-alanine:NAD+ oxidoreductase (glycine-forming)
                      strombine dehydrogenase
                      N-(carboxymethyl)-D-alanine: NAD+ oxidoreductase
                      strombine[N-(carboxymethyl)-D-alanine]dehydrogenase

30. 2.3.2.15 enzyme   glutathione:poly(4-glutamyl-cysteinyl)glycine 4-glutamylcysteinyltransferase
                      phytochelatin synthase
                      glutathione gamma-glutamylcysteinyltransferase
                      gamma-glutamylcysteine dipeptidyl transpeptidase

31. 3.5.1.78 enzyme   gamma-L-glutamyl-L-cysteinyl-glycine:spermidine amidase
                      glutathionylspermidine amidase
                      glutathionylspermidine amidohydrolase (spermidine-forming)

32. 1.97.1.4 enzyme   formate acetyltransferase-glycine  dihydroflavodoxin:S-adenosyl-L-methionine oxidoreductase
                      PFL-glycine:S-adenosyl-L-methionine H transferase  (flavodoxin-oxidizing, S-adenosyl-L-methionine-cleaving)
                      [formate C-acetyltransferase]-glycine dihydroflavodoxin:S-adenosyl-L-methionine oxidoreductase (S-adenosyl-L-methionine cleaving)
                      PFL activase
                      formate acetyltransferase activating enzyme
                      [formate-C-acetyltransferase]-activating enzyme

33. 6.3.2.3 enzyme   gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
                      GSH synthetase
                      glutathione synthase
                      glutathione synthetase

34. 6.3.1.8 enzyme   gamma-L-Glutamyl-L-cysteinyl-glycine:spermidine ligase (ADP-forming) [spermidine is numbered so that atom N-1 is in the amino group of the aminopropyl part of the molecule]
                      glutathionylspermidine synthase
                      glutathione:spermidine ligase (ADP-forming)