Reported enzyme(s):
1.2.1.3 aldehyde dehydrogenase (NAD+)
3.4.13.20 beta-Ala-His dipeptidase
3.4.13.3 X-His dipeptidase
3.4.13.4 Xaa-Arg dipeptidase
3.4.13.5 Xaa-methyl-His dipeptidase
6.3.2.11 carnosine synthase

Possible enzyme(s):

Reported enzyme(s):
1.5.1.26 beta-alanopine dehydrogenase
2.1.1.27 tyramine N-methyltransferase
2.3.1.110 tyramine N-feruloyltransferase
2.3.1.65 glycine N-choloyltransferase
2.3.1.87 aralkylamine N-acetyltransferase
2.3.2.2 gamma-glutamyltransferase
2.6.1.37 2-aminoethylphosphonate-pyruvate transaminase
2.6.1.77 taurine-pyruvate aminotransferase
3.5.1.21 N-acetyl-beta-alanine deacetylase
3.5.1.22 pantothenase
3.5.1.24 choloylglycine hydrolase
3.5.1.6 beta-ureidopropionase
3.5.1.74 chenodeoxycholoyltaurine hydrolase
3.5.3.17 guanidinopropionase
6.3.2.1 pantoate-beta-alanine ligase
6.3.2.18 gamma-glutamylhistamine synthase
6.3.2.23 homoglutathione synthase

Possible enzyme(s):
1.5.1.23 tauropine dehydrogenase

Reported enzyme(s):
2.6.1.18 beta-alanine-pyruvate transaminase
2.6.1.19 4-aminobutyrate transaminase
2.6.1.55 taurine-2-oxoglutarate transaminase

Possible enzyme(s):

Reported enzyme(s):
4.1.1.11 aspartate 1-decarboxylase
4.1.1.15 glutamate decarboxylase

Possible enzyme(s):

Reported enzyme(s):

Possible enzyme(s):
1.13.11.40 arachidonate 8-lipoxygenase
2.5.1.48 cystathionine gamma-synthase
2.5.1.62 chlorophyll synthase
2.7.2.1 acetate kinase
2.7.2.15 propionate kinase
2.7.2.7 butyrate kinase
3.1.1.14 chlorophyllase
3.1.1.21 retinyl-palmitate esterase
3.1.1.44 4-methyloxaloacetate esterase
3.1.1.51 phorbol-diester hydrolase
3.1.1.63 11-cis-retinyl-palmitate hydrolase
3.1.1.64 all-trans-retinyl-palmitate hydrolase
3.1.1.70 cetraxate benzylesterase
3.6.1.20 5'-acylphosphoadenosine hydrolase
6.1.1.14 glycine-tRNA ligase
6.3.5.10 adenosylcobyric acid synthase (glutamine-hydrolysing)
6.3.5.9 hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing)

Reported enzyme(s):

Possible enzyme(s):
2.7.2.4 aspartate kinase
6.2.1.1 acetate-CoA ligase
6.2.1.11 biotin-CoA ligase
6.2.1.17 propionate-CoA ligase
6.3.4.10 biotin-[propionyl-CoA-carboxylase (ATP-hydrolysing)] ligase
6.3.4.11 biotin-[methylcrotonoyl-CoA-carboxylase] ligase
6.3.4.15 biotin-[acetyl-CoA-carboxylase] ligase
6.3.4.9 biotin-[methylmalonyl-CoA-carboxytransferase] ligase