Reported enzyme(s):
3.5.1.63 4-acetamidobutyrate deacetylase
3.5.3.1 arginase
3.5.3.10 D-arginase
3.5.3.11 agmatinase
3.5.3.20 diguanidinobutanase
3.5.3.22 proclavaminate amidinohydrolase
3.5.3.7 guanidinobutyrase
6.3.1.9 trypanothione synthase

Possible enzyme(s):
1.5.3.11 polyamine oxidase
1.5.99.6 spermidine dehydrogenase
2.1.1.103 phosphoethanolamine N-methyltransferase
2.1.1.53 putrescine N-methyltransferase
2.1.3.3 ornithine carbamoyltransferase
2.1.3.6 putrescine carbamoyltransferase
2.1.4.1 glycine amidinotransferase
2.1.4.2 scyllo-inosamine-4-phosphate amidinotransferase
2.3.1.127 ornithine N-benzoyltransferase
2.3.1.138 putrescine N-hydroxycinnamoyltransferase
2.3.1.57 diamine N-acetyltransferase
2.3.1.64 agmatine N4-coumaroyltransferase
2.5.1.16 spermidine synthase
2.5.1.22 spermine synthase
2.5.1.23 sym-norspermidine synthase
2.5.1.44 homospermidine synthase
2.5.1.45 homospermidine synthase (spermidine-specific)
2.5.1.46 deoxyhypusine synthase
2.6.1.11 acetylornithine transaminase
2.6.1.13 ornithine-oxo-acid transaminase
2.6.1.29 diamine transaminase
2.6.1.46 diaminobutyrate-pyruvate transaminase
2.7.3.10 agmatine kinase
3.5.1.20 citrullinase
3.5.1.40 acylagmatine amidase
3.5.1.51 4-acetamidobutyryl-CoA deacetylase
3.5.1.53 N-carbamoylputrescine amidase
3.5.1.60 N-(long-chain-acyl)ethanolamine deacylase
3.5.1.62 acetylputrescine deacetylase

Reported enzyme(s):
2.6.1.48 5-aminovalerate transaminase

Possible enzyme(s):

Reported enzyme(s):
3.5.1.30 5-aminopentanamidase

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