K00278  nadB; L-aspartate oxidase [EC:1.4.3.16]
       K06989  nadX, ASPDH; aspartate dehydrogenase [EC:1.4.1.21]
       K03517  nadA; quinolinate synthase [EC:2.5.1.72]
       K00767  nadC, QPRT; nicotinate-nucleotide pyrophosphorylase (carboxylating) [EC:2.4.2.19]
       K00763  pncB, NAPRT1; nicotinate phosphoribosyltransferase [EC:6.3.4.21]
       K03783  punA, PNP; purine-nucleoside phosphorylase [EC:2.4.2.1]
       K03784  deoD; purine-nucleoside phosphorylase [EC:2.4.2.1]
       K10524  NRK1_2; nicotinamide/nicotinate riboside kinase [EC:2.7.1.22 2.7.1.173]
       K06211  nadR; HTH-type transcriptional regulator, transcriptional repressor of NAD biosynthesis genes [EC:2.7.7.1 2.7.1.22]
       K01081  E3.1.3.5; 5'-nucleotidase [EC:3.1.3.5]
       K19970  NT5E, CD73; 5'-nucleotidase [EC:3.1.3.5]
       K11751  ushA; 5'-nucleotidase / UDP-sugar diphosphatase [EC:3.1.3.5 3.6.1.45]
       K03787  surE; 5'/3'-nucleotidase [EC:3.1.3.5 3.1.3.6]
       K02566  nagD; 5'-nucleotidase [EC:3.1.3.5]
       K08693  yfkN; 2',3'-cyclic-nucleotide 2'-phosphodiesterase / 3'-nucleotidase / 5'-nucleotidase [EC:3.1.4.16 3.1.3.6 3.1.3.5]
       K18550  ISN1; IMP and pyridine-specific 5'-nucleotidase [EC:3.1.3.99 3.1.3.-]
       K18551  SDT1; pyrimidine and pyridine-specific 5'-nucleotidase [EC:3.1.3.-]
       K01240  URH1; uridine nucleosidase [EC:3.2.2.3]
       K06210  NMNAT; nicotinamide mononucleotide adenylyltransferase [EC:2.7.7.1 2.7.7.18]
       K19785  POF1; nicotinamide-nucleotide adenylyltransferase [EC:2.7.7.1]
       K00952  nadM; nicotinamide-nucleotide adenylyltransferase [EC:2.7.7.1]
       K13522  K13522, nadM; bifunctional NMN adenylyltransferase/nudix hydrolase [EC:2.7.7.1 3.6.1.-]
       K00969  nadD; nicotinate-nucleotide adenylyltransferase [EC:2.7.7.18]
       K01513  ENPP1_3, CD203; ectonucleotide pyrophosphatase/phosphodiesterase family member 1/3 [EC:3.1.4.1 3.6.1.9]
       K04765  mazG; nucleoside triphosphate diphosphatase [EC:3.6.1.9]
       K03426  NUDT12_13, nudC; NAD+ diphosphatase [EC:3.6.1.22]
       K26956  NUDT2_6_7_10; ADP-ribose/NAD+ diphosphatase [EC:3.6.1.13 3.6.1.22]
       K01916  nadE; NAD+ synthase [EC:6.3.1.5]
       K01950  E6.3.5.1, NADSYN1, QNS1, nadE; NAD+ synthase (glutamine-hydrolysing) [EC:6.3.5.1]
       K03742  pncC; nicotinamide-nucleotide amidase [EC:3.5.1.42]
       K03743  pncC; nicotinamide-nucleotide amidase [EC:3.5.1.42]
       K01440  PNC1; nicotinamidase [EC:3.5.1.19]
       K08281  pncA; nicotinamidase/pyrazinamidase [EC:3.5.1.19 3.5.1.-]
       K03462  NAMPT; nicotinamide phosphoribosyltransferase [EC:2.4.2.12]
       K18153  nga; NAD+ glycohydrolase [EC:3.2.2.5]
       K19980  ART2, RT6; ADP-ribosyltransferase 2 / NAD+ glycohydrolase [EC:2.4.2.31 3.2.2.5]
       K01242  CD38; ADP-ribosyl cyclase 1 [EC:3.2.2.6 2.4.99.20]
       K18152  BST1, CD157; ADP-ribosyl cyclase 2 [EC:3.2.2.6 2.4.99.20]
       K11121  SIR2; NAD-dependent protein deacetylase SIR2 [EC:2.3.1.286]
       K11411  SIRT1, SIR2L1; NAD-dependent protein deacetylase sirtuin 1 [EC:2.3.1.286]
       K11412  SIRT2, SIR2L2; NAD-dependent protein deacetylase sirtuin 2 [EC:2.3.1.286]
       K11413  SIRT3, SIR2L3; NAD-dependent protein deacetylase sirtuin 3 [EC:2.3.1.286]
       K11414  SIRT4, SIR2L4; NAD-dependent protein deacetylase/lipoamidase sirtuin 4 [EC:2.3.1.286 2.3.1.313]
       K11415  SIRT5, SIR2L5; NAD-dependent protein deacetylase sirtuin 5 [EC:2.3.1.286]
       K11416  SIRT6, SIR2L6; NAD-dependent protein deacetylase sirtuin 6 [EC:2.3.1.286]
       K11417  SIRT7, SIR2L7; NAD-dependent protein deacetylase sirtuin 7 [EC:2.3.1.286]
       K12410  cobB, srtN, npdA; NAD-dependent protein deacetylase/lipoamidase [EC:2.3.1.286 2.3.1.313]
       K00858  ppnK, NADK; NAD+ kinase [EC:2.7.1.23]
       K00322  sthA, udhA; NAD(P) transhydrogenase [EC:1.6.1.1]
       K00323  NNT; proton-translocating NAD(P)+ transhydrogenase [EC:7.1.1.1]
       K00324  pntA; proton-translocating NAD(P)+ transhydrogenase subunit alpha [EC:7.1.1.1]
       K00325  pntB; proton-translocating NAD(P)+ transhydrogenase subunit beta [EC:7.1.1.1]
       K00541  NNMT; nicotinamide N-methyltransferase [EC:2.1.1.1]
       K00157  AOX; aldehyde oxidase [EC:1.2.3.1]
       K18029  nicA; nicotinate dehydrogenase subunit A [EC:1.17.2.1]
       K18030  nicB; nicotinate dehydrogenase subunit B [EC:1.17.2.1]
       K20445  ndhF; nicotinate dehydrogenase FAD-subunit [EC:1.17.1.5]
       K20446  ndhS; nicotinate dehydrogenase small FeS subunit [EC:1.17.1.5]
       K20447  ndhL; nicotinate dehydrogenase large molybdopterin subunit [EC:1.17.1.5]
       K20448  ndhM; nicotinate dehydrogenase medium molybdopterin subunit [EC:1.17.1.5]
       K14974  nicC; 6-hydroxynicotinate 3-monooxygenase [EC:1.14.13.114]
       K18028  nicX; 2,5-dihydroxypyridine 5,6-dioxygenase [EC:1.13.11.9]
       K15357  nicD; N-formylmaleamate deformylase [EC:3.5.1.106]
       K13995  nicF; maleamate amidohydrolase [EC:3.5.1.107]
       K01799  nicE, maiA; maleate isomerase [EC:5.2.1.1]
       K20449  hnr; 6-hydroxynicotinate reductase [EC:1.3.7.1]
       K15358  ena; enamidase [EC:3.5.2.18]
       K19647  hgd; 2-hydroxymethylglutarate dehydrogenase [EC:1.1.1.291]
       K20450  mgm; 2-methyleneglutarate mutase [EC:5.4.99.4]
       K20451  mii; methylitaconate Delta-isomerase [EC:5.3.3.6]
       K20452  dmdA; dimethylmaleate hydratase large subunit [EC:4.2.1.85]
       K20453  dmdB; dimethylmaleate hydratase small subunit [EC:4.2.1.85]
       K20454  dml; 2,3-dimethylmalate lyase [EC:4.1.3.32]
       K19818  ndhA; nicotine dehydrogenase subunit A [EC:1.5.99.4]
       K19819  ndhB; nicotine dehydrogenase subunit B [EC:1.5.99.4]
       K19820  ndhC; nicotine dehydrogenase subunit C [EC:1.5.99.4]
       K19826  nctB, 6-hlno; (S)-6-hydroxynicotine oxidase [EC:1.5.3.5]
       K19890  6-hdno; (R)-6-hydroxynicotine oxidase [EC:1.5.3.6]
       K20169  nox, nicA2; nicotine dehydrogenase [EC:1.4.2.2]
       K20158  pao; pseudooxynicotine dehydrogenase [EC:1.4.2.3]
       K19700  sap; 3-succinoylsemialdehyde-pyridine dehydrogenase [EC:1.2.1.83]
       K20170  nicA1; nicotine oxidoreductase
       K20171  spmA; 3-succinoylpyridine monooxygenase subunit A
       K20172  spmC; 3-succinoylpyridine monooxygenase subunit C
       K15359  hspA; 6-hydroxy-3-succinoylpyridine 3-monooxygenase [EC:1.14.13.163]
       K18276  hspB; 6-hydroxy-3-succinoylpyridine 3-monooxygenase [EC:1.14.13.163]
       K00135  gabD; succinate-semialdehyde dehydrogenase / glutarate-semialdehyde dehydrogenase [EC:1.2.1.16 1.2.1.79 1.2.1.20]
       K08324  sad; succinate-semialdehyde dehydrogenase [EC:1.2.1.16 1.2.1.24]
       K19185  kdhA; 6-hydroxypseudooxynicotine dehydrogenase subunit alpha [EC:1.5.99.14]
       K19186  kdhB; 6-hydroxypseudooxynicotine dehydrogenase subunit beta [EC:1.5.99.14]
       K19187  kdhL; 6-hydroxypseudooxynicotine dehydrogenase subunit gamma [EC:1.5.99.14]
       K19188  dhponh; 2,6-dihydroxypseudooxynicotine hydrolase [EC:3.7.1.19]
       K19189  dhpH; 2,6-dihydroxypyridine 3-monooxygenase [EC:1.14.13.10]
       K19190  nboR; nicotine blue oxidoreductase [EC:1.1.1.328]
       K19191  mabO; 4-methylaminobutanoate oxidase (formaldehyde-forming) [EC:1.5.3.19]
       K20155  mao; 4-methylaminobutanoate oxidase (methylamine-forming) [EC:1.5.3.21]