| Variant | Organism | Pathway | ||||||||
| Index | Status | All(298) | E(16) | B(261) | A(21) | B3 -> NADP | N-Ribosylnicotinamide -> NADP | Trp -> NADP | IndAm -> NADP | Asp -> NADP |
| Basic form | functional | 61 | 0 | 58 | 3 | complete | complete | |||
| Variant 1 | functional | 39 | 1 | 38 | 0 | complete | ||||
| Variant 2 | functional | 38 | 0 | 38 | 0 | complete | ||||
| Variant 3 | functional | 23 | 0 | 23 | 0 | complete | complete | complete | ||
| Variant 4 | non-functional | 16 | 1 | 14 | 1 | |||||
| Variant 5 | functional | 11 | 0 | 11 | 0 | complete | ||||
| Variant 6 | functional | 10 | 0 | 10 | 0 | complete | complete | |||
| Variant 7 | functional | 6 | 0 | 1 | 5 | complete | ||||
| Variant 8 | functional | 6 | 0 | 2 | 4 | complete | ||||
| Variant 9 | functional | 5 | 0 | 5 | 0 | complete | ||||
| Variant 10 | functional | 5 | 0 | 5 | 0 | complete | ||||
| Variant 11 | functional | 5 | 1 | 4 | 0 | complete | complete | |||
| Variant 12 | functional | 5 | 0 | 0 | 5 | complete | ||||
| Variant 13 | functional | 4 | 1 | 3 | 0 | complete | ||||
| Variant 14 | functional | 4 | 0 | 4 | 0 | complete | complete | complete | ||
| Variant 15 | functional | 3 | 0 | 3 | 0 | complete | complete | |||
| Variant 16 | non-functional | 3 | 0 | 3 | 0 | |||||
| Variant 17 | functional | 3 | 0 | 3 | 0 | complete | complete | |||
| Variant 18 | functional | 3 | 0 | 3 | 0 | complete | complete | complete | ||
| Variant 19 | functional | 3 | 0 | 0 | 3 | complete | ||||
| Variant 20 | functional | 3 | 0 | 3 | 0 | complete | ||||
| Variant 21 | functional | 3 | 2 | 1 | 0 | complete | ||||
| Variant 22 | functional | 2 | 0 | 2 | 0 | complete | ||||
| Variant 23 | functional | 2 | 2 | 0 | 0 | complete | complete | complete | ||
| Variant 24 | functional | 2 | 0 | 2 | 0 | complete | ||||
| Variant 25 | functional | 2 | 0 | 2 | 0 | complete | ||||
| Variant 26 | functional | 2 | 1 | 1 | 0 | complete | ||||
| Variant 27 | functional | 2 | 0 | 2 | 0 | complete | complete | |||
| Variant 28 | non-functional | 2 | 0 | 2 | 0 | |||||
| Variant 29 | functional | 2 | 0 | 2 | 0 | complete | complete | |||
| Variant 30 | functional | 2 | 2 | 0 | 0 | complete | ||||
| Variant 31 | functional | 2 | 2 | 0 | 0 | complete | ||||
| Variant 32 | functional | 2 | 0 | 2 | 0 | complete | ||||
| Variant 33 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 34 | functional | 1 | 0 | 1 | 0 | complete | complete | |||
| Variant 35 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 36 | functional | 1 | 1 | 0 | 0 | complete | complete | |||
| Variant 37 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 38 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 39 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 40 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 41 | functional | 1 | 0 | 1 | 0 | complete | complete | |||
| Variant 42 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 43 | functional | 1 | 1 | 0 | 0 | complete | complete | complete | ||
| Variant 44 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 45 | functional | 1 | 0 | 1 | 0 | complete | complete | |||
| Variant 46 | functional | 1 | 0 | 1 | 0 | complete | ||||
| Variant 47 | functional | 1 | 0 | 1 | 0 | complete | complete | |||
| Variant 48 | functional | 1 | 1 | 0 | 0 | complete | ||||
| Variant 49 | functional | 1 | 0 | 1 | 0 | complete | ||||

| ID | Abbrev | Functional role |
| 1 | TDO | Tryptophan 2 |
| 2 | IDO | Indoleamine 2 |
| 3 | KFA_e | Kynurenine formamidase (EC 3.5.1.9) |
| 4 | KFA_b | Kynurenine formamidase |
| 5 | KMO | Kynurenine 3-monooxygenase (EC 1.14.13.9) |
| 6 | KYN | Kynureninase (EC 3.7.1.3) |
| 7 | HAD | 3-hydroxyanthranilate 3 |
| 8 | ASPOX | L-aspartate oxidase (EC 1.4.3.16) |
| 9 | ASPDH | Aspartate dehydrogenase [same functional role as] (EC 1.4.3.16) |
| 10 | QSYN | Quinolinate synthetase (EC 4.1.99.-) |
| 11 | QAPRT | Quinolinate phosphoribosyltransferase [decarboxylating] (EC 2.4.2.19) |
| 12 | NAMNAT | Nicotinate-nucleotide adenylyltransferase (EC 2.7.7.18) |
| 13 | NMNAT | Nicotinamide-nucleotide adenylyltransferase (EC 2.7.7.1) |
| 14 | NADS | NAD synthetase (EC 6.3.1.5) |
| 15 | GAT | Glutamine amidotransferase chain of NAD synthetase |
| 16 | NADK | NAD kinase (EC 2.7.1.23) |
| 17 | NAM | Nicotinamidase (EC 3.5.1.19) |
| 18 | NAPRT | Nicotinate phosphoribosyltransferase (EC 2.4.2.11) |
| 19 | NMPRT | Nicotinamide phosphoribosyltransferase (EC 2.4.2.12) |
| 20 | PNUC | Ribosyl nicotinamide transporter |
| 21 | RNK_b | Ribosylnicotinamide kinase (EC 2.7.1.22) |
| 22 | RNK_e | Ribosylnicotinamide kinase |
| ID | Abbrev | Description |
| 1 | Trp | Tryptophan |
| 2 | IndAm | Indoleamine |
| 3 | I-Q | N-formylkynurenine |
| 4 | II-Q | Kynurenine |
| 5 | III-Q | 3-hydroxykynurenine |
| 6 | IV-Q | 3-hydroxyanthranilate |
| 7 | V-Q | alpha-amino-beta-carboxymuconic semialdehyde |
| 8 | Quinolinate | Quinolinate |
| 9 | Asp | Aspartate |
| 10 | VIII-Q | Iminoaspartate |
| 11 | IX-Q | Dihydroxyacetone phosphate |
| 12 | I | L-Aspartate |
| 13 | II | Iminoaspartate |
| 14 | III | Dihydroxyacetone phosphate |
| 15 | Quinolinate | Quinolinate |
| 16 | B3 | Nicotinamide |
| 17 | V | Nicotinic acid |
| 18 | PRPP | 5-Phosphoribosyl 1-pyrophosphate |
| 19 | VI | NaMN (Nicotinate mononucleotide) |
| 20 | VII | NMN (Nicotinamide mononucleotide) |
| 21 | VIII | N-Ribosylnicotinamide |
| 22 | IX | Deamido-NAD |
| 23 | NAD | Nicotinamide adenine dinucleotide |
| 24 | NADP | NAD phosphate |