Reported enzyme(s):
1.4.3.8 ethanolamine oxidase
4.3.1.7 ethanolamine ammonia-lyase

Possible enzyme(s):

Reported enzyme(s):
3.5.1.60 N-(long-chain-acyl)ethanolamine deacylase
3.5.1.62 acetylputrescine deacetylase
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
2.6.1.48 5-aminovalerate 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

Reported enzyme(s):
2.7.1.82 ethanolamine kinase
2.7.8.24 phosphatidylcholine synthase
2.8.2.6 choline sulfotransferase
3.1.1.17 gluconolactonase
3.1.1.49 sinapine esterase
3.1.1.7 acetylcholinesterase
3.1.1.8 cholinesterase
3.1.3.51 dolichyl-phosphatase
3.1.3.75 phosphoethanolamine/phosphocholine phosphatase
3.1.4.2 glycerophosphocholine phosphodiesterase
3.1.4.39 alkylglycerophosphoethanolamine phosphodiesterase
3.1.4.4 phospholipase D
3.1.4.41 sphingomyelin phosphodiesterase D
3.1.4.46 glycerophosphodiester phosphodiesterase
3.1.6.6 choline-sulfatase

Possible enzyme(s):
2.3.1.123 dolichol O-acyltransferase
2.3.1.152 alcohol O-cinnamoyltransferase
2.3.1.31 homoserine O-acetyltransferase
2.3.1.46 homoserine O-succinyltransferase
2.3.1.6 choline O-acetyltransferase
2.3.1.83 phosphatidylcholine-dolichol O-acyltransferase
2.3.1.91 sinapoylglucose-choline O-sinapoyltransferase
2.7.1.108 dolichol kinase
2.7.1.32 choline kinase
2.7.1.39 homoserine kinase