K00613  GATM; glycine amidinotransferase [EC:2.1.4.1]
       K00542  GAMT; guanidinoacetate N-methyltransferase [EC:2.1.1.2]
       K00933  E2.7.3.2; creatine kinase [EC:2.7.3.2]
       K27382  CKM; creatine kinase M-type [EC:2.7.3.2]
       K01470  E3.5.2.10; creatinine amidohydrolase [EC:3.5.2.10]
       K01485  codA; cytosine/creatinine deaminase [EC:3.5.4.1 3.5.4.21]
       K03365  FCY1; cytosine/creatinine deaminase [EC:3.5.4.1 3.5.4.21]
       K01473  hyuA; N-methylhydantoinase A [EC:3.5.2.14]
       K01474  hyuB; N-methylhydantoinase B [EC:3.5.2.14]
       K08687  E3.5.1.59; N-carbamoylsarcosine amidase [EC:3.5.1.59]
       K08688  E3.5.3.3; creatinase [EC:3.5.3.3]
       K01583  E4.1.1.19; arginine decarboxylase [EC:4.1.1.19]
       K01584  adiA; arginine decarboxylase [EC:4.1.1.19]
       K01585  speA; arginine decarboxylase [EC:4.1.1.19]
       K02626  pdaD; arginine decarboxylase [EC:4.1.1.19]
       K01480  speB; agmatinase [EC:3.5.3.11]
       K10536  aguA; agmatine deiminase [EC:3.5.3.12]
       K12251  aguB; N-carbamoylputrescine amidase [EC:3.5.1.53]
       K14329  ACT; agmatine coumaroyltransferase [EC:2.3.1.64 2.3.1.-]
       K01581  E4.1.1.17, ODC1, speC, speF; ornithine decarboxylase [EC:4.1.1.17]
       K00797  speE, SRM, SPE3; spermidine synthase [EC:2.5.1.16]
       K24034  SPE3-LYS9; spermidine synthase / saccharopine dehydrogenase (NADP+, L-glutamate-forming) [EC:2.5.1.16 1.5.1.10]
       K00802  SMS; spermine synthase [EC:2.5.1.22]
       K01611  speD, AMD1; S-adenosylmethionine decarboxylase [EC:4.1.1.50]
       K13746  cansdh; carboxynorspermidine synthase [EC:1.5.1.43]
       K13747  nspC; carboxynorspermidine decarboxylase [EC:4.1.1.96]
       K11182  AOC1, ABP1; diamine oxidase [EC:1.4.3.22]
       K09251  patA; putrescine aminotransferase [EC:2.6.1.82]
       K12256  spuC; putrescine---pyruvate transaminase [EC:2.6.1.113]
       K03343  puo; putrescine oxidase [EC:1.4.3.10]
       K12259  SMOX, PAO5; spermine oxidase [EC:1.5.3.16 1.5.3.-]
       K13366  MPAO, PAO1; polyamine oxidase [EC:1.5.3.14 1.5.3.16 1.5.3.-]
       K17839  PAO4, PAO3, PAO2; polyamine oxidase [EC:1.5.3.17 1.5.3.-]
       K13367  FMS1; polyamine oxidase [EC:1.5.3.17]
       K00316  spdH; spermidine dehydrogenase [EC:1.5.99.6]
       K00128  ALDH; aldehyde dehydrogenase (NAD+) [EC:1.2.1.3]
       K14085  ALDH7A1; aldehyde dehydrogenase family 7 member A1 [EC:1.2.1.31 1.2.1.8 1.2.1.3]
       K00149  ALDH9A1; aldehyde dehydrogenase family 9 member A1 [EC:1.2.1.47 1.2.1.3]
       K00137  prr; aminobutyraldehyde dehydrogenase [EC:1.2.1.19]
       K12254  kauB; 4-guanidinobutyraldehyde dehydrogenase / NAD-dependent aldehyde dehydrogenase [EC:1.2.1.54 1.2.1.-]
       K05604  CNDP1; beta-Ala-His dipeptidase [EC:3.4.13.20]
       K08660  CNDP2; cytosolic nonspecific dipeptidase [EC:3.4.13.18]
       K14755  CRNS1, ATPGD1; carnosine synthase [EC:6.3.2.11]
       K00657  speG, SAT; diamine N-acetyltransferase [EC:2.3.1.57]
       K00274  MAO, aofH; monoamine oxidase [EC:1.4.3.4]
       K12252  aruH; arginine:pyruvate transaminase [EC:2.6.1.84]
       K21639  E1.4.3.25; L-arginine oxidase [EC:1.4.3.25]
       K12253  aruI; 5-guanidino-2-oxopentanoate decarboxylase [EC:4.1.1.75]
       K12255  gbuA; guanidinobutyrase [EC:3.5.3.7]
       K25365  gbh; guanidinobutyrase / D-arginase [EC:3.5.3.7 3.5.3.10]
       K27001  GDAH, AGMAT; taurocyamine/4-guanidinobutanoate/3-guanidinopropanoate hydrolase [EC:3.5.3.- 3.5.3.7 3.5.3.17]
       K01426  E3.5.1.4, amiE; amidase [EC:3.5.1.4]
       K00673  astA; arginine N-succinyltransferase [EC:2.3.1.109]
       K01484  astB; succinylarginine dihydrolase [EC:3.5.3.23]
       K00840  astC; succinylornithine aminotransferase [EC:2.6.1.81]
       K06447  astD; succinylglutamic semialdehyde dehydrogenase [EC:1.2.1.71]
       K05526  astE; succinylglutamate desuccinylase [EC:3.5.1.96]
       K09470  puuA; gamma-glutamylputrescine synthase [EC:6.3.1.11]
       K09471  puuB, ordL; gamma-glutamylputrescine oxidase [EC:1.4.3.-]
       K09472  puuC, aldH; 4-(gamma-glutamylamino)butanal dehydrogenase [EC:1.2.1.99]
       K09473  puuD; gamma-glutamyl-gamma-aminobutyrate hydrolase [EC:3.5.1.94]
       K23233  ODH1; D-octopine dehydrogenase [EC:1.5.1.11]
       K00296  nos; D-nopaline dehydrogenase [EC:1.5.1.19]
       K24952  noxA; nopaline oxidase subunit A
       K24953  noxB; nopaline oxidase subunit B
       K24954  ooxA; octopine oxidase subunit A
       K24955  ooxB; octopine oxidase subunit B
       K00934  E2.7.3.3; arginine kinase [EC:2.7.3.3]
       K13240  NOS1; nitric-oxide synthase, brain [EC:1.14.13.39]
       K13241  NOS2; nitric-oxide synthase, inducible [EC:1.14.13.39]
       K13242  NOS3; nitric-oxide synthase, endothelial [EC:1.14.13.39]
       K13427  NOA1; nitric-oxide synthase, plant [EC:1.14.13.39]
       K00491  nos; nitric-oxide synthase, bacterial [EC:1.14.14.47]
       K01476  E3.5.3.1, rocF, arg; arginase [EC:3.5.3.1]
       K00819  rocD, OAT; ornithine--oxo-acid transaminase [EC:2.6.1.13]
       K00286  proC; pyrroline-5-carboxylate reductase [EC:1.5.1.2]
       K00318  PRODH, fadM, putB; proline dehydrogenase [EC:1.5.5.2]
       K13821  putA; RHH-type transcriptional regulator, proline utilization regulon repressor / proline dehydrogenase / delta 1-pyrroline-5-carboxylate dehydrogenase [EC:1.5.5.2 1.2.1.88]
       K01750  E4.3.1.12, ocd; ornithine cyclodeaminase [EC:4.3.1.12]
       K00294  E1.2.1.88; 1-pyrroline-5-carboxylate dehydrogenase [EC:1.2.1.88]
       K00931  proB; glutamate 5-kinase [EC:2.7.2.11]
       K00147  proA; glutamate-5-semialdehyde dehydrogenase [EC:1.2.1.41]
       K12657  ALDH18A1, P5CS; delta-1-pyrroline-5-carboxylate synthetase [EC:2.7.2.11 1.2.1.41]
       K22842  MRP; L-glutamate-5-semialdehyde N-acetyltransferase [EC:2.3.1.271]
       K01259  pip; proline iminopeptidase [EC:3.4.11.5]
       K11142  LAP3; cytosol aminopeptidase [EC:3.4.11.1 3.4.11.5]
       K00472  P4HA; prolyl 4-hydroxylase [EC:1.14.11.2]
       K23121  pflD; trans-4-hydroxy-L-proline dehydratase [EC:4.2.1.172]
       K11394  PRODH2; hydroxyproline dehydrogenase [EC:1.5.5.3]
       K14454  GOT1; aspartate aminotransferase, cytoplasmic [EC:2.6.1.1]
       K14455  GOT2; aspartate aminotransferase, mitochondrial [EC:2.6.1.1]
       K00811  ASP5; aspartate aminotransferase, chloroplastic [EC:2.6.1.1]
       K00812  aspB; aspartate aminotransferase [EC:2.6.1.1]
       K00813  aspC; aspartate aminotransferase [EC:2.6.1.1]
       K11358  yhdR; aspartate aminotransferase [EC:2.6.1.1]
       K00824  dat; D-alanine transaminase [EC:2.6.1.21]
       K18123  HOGA1; 4-hydroxy-2-oxoglutarate aldolase [EC:4.1.3.16]
       K01777  prdF; proline racemase [EC:5.1.1.4]
       K21672  ord; 2,4-diaminopentanoate dehydrogenase [EC:1.4.1.12 1.4.1.26]
       K10793  prdA; D-proline reductase (dithiol) PrdA [EC:1.21.4.1]
       K10794  prdB; D-proline reductase (dithiol) PrdB [EC:1.21.4.1]
       K00273  DAO, aao; D-amino-acid oxidase [EC:1.4.3.3]
       K17851  dpd; D-proline dehydrogenase [EC:1.5.99.13]
       K18384  L3HYPDH; trans-L-3-hydroxyproline dehydratase [EC:4.2.1.77]
       K22548  lhpL; trans-L-3-hydroxyproline dehydratase [EC:4.2.1.77]
       K21624  c3lhypd; cis-L-3-hydroxyproline dehydratase [EC:4.2.1.171]
       K09123  lhpI; cis-L-3-hydroxyproline dehydratase [EC:4.2.1.171]
       K19743  lhpI; 1-piperideine-2-carboxylate/1-pyrroline-2-carboxylate reductase [NAD(P)H] [EC:1.5.1.1]
       K19742  lhpI; 1-pyrroline-2-carboxylate reductase [NAD(P)H] [EC:1.5.1.49]