| MMDBr0013162 | Nitrate | Nitrite | Periplasmic nitrate reductase | Reduction | RHEA | 34755880 |
| MMDBr0013262 | Chorismate | Prephenate | Protein AroA(G) | Intramolecular transfer of functional group; Non-hydrolytic bond cleavage (or its reversal); Synthesis | RHEA | 34755880 |
| MMDBr0013303 | alpha-Ketoglutarate | 3-Phosphonatooxypyruvate(3-) | Phosphoserine aminotransferase | Amine group addition | RHEA | 34755880 |
| MMDBr0013347 | beta-D-Fructose 1,6-bisphosphate | D-Glyceraldehyde 3-phosphate | Fructose-bisphosphate aldolase | Aldol addition (or reverse) | RHEA | 34755880 |
| MMDBr0013405 | Nitric oxide | Nitrite | Copper-containing nitrite reductase | Reduction | RHEA | 34755880 |
| MMDBr0013458 | Guanosine triphosphate | Guanosine diphosphate | Adenylosuccinate synthetase | Synthesis | RHEA | 34755880 |
| MMDBr0013544 | alpha-Ketoglutarate | (R)-3-hydroxy-2-oxo-4-phosphooxybutanoic acid | Phosphoserine aminotransferase | Amine group addition | RHEA | 34755880 |
| MMDBr0013720 | Phosphonate | Phosphonate | Phosphonates import ATP-binding protein PhnC | Phosphonates | RHEA | 34755880 |
| MMDBr0013840 | Siroheme | 12,18-didecarboxysiroheme | Siroheme decarboxylase alpha subunit | Decarboxylation | RHEA | 34755880 |
| MMDBr0014128 | Prephenate | 3-phenylpyruvic acid | Bifunctional chorismate mutase/prephenate dehydratase | Dehydration and isomerisation | RHEA | 34755880 |
| MMDBr0014227 | (S)-4-hydroxy-2-oxopentanoic acid | Acetaldehyde | 4-hydroxy-2-oxovalerate aldolase | Aldol addition (or reverse) | RHEA | 34755880 |
| MMDBr0014377 | alpha-Ketoglutarate | 3-(Imidazol-4-yl)-2-oxopropyl phosphate | Histidinol-phosphate aminotransferase | Amine group addition | RHEA | 34755880 |
| MMDBr0014977 | Nitrous oxide | Nitric oxide | Nitric oxide reductase subunit B | Reduction | RHEA | 34755880 |
| MMDBr0015220 | (2Z,4E)-2-hydroxyhexa-2,4-dienedioic acid | (3E)-2-oxohex-3-enedioate | 2-hydroxymuconate tautomerase | Ketonization | RHEA | 34755880 |
| MMDBr0015889 | Nitrogen | Nitrous oxide | Nitrous-oxide reductase | Reduction | RHEA | 34755880 |
| MMDBr0016389 | phosphinate | phosphinate | Hypophosphite import ATP-binding protein HtxD | Transport | RHEA | 34755880 |
| MMDBr0016412 | phosphite | phosphite | Phosphite import ATP-binding protein PxtA | Transport | RHEA | 34755880 |
| MMDBr0017882 | Hydrogen carbonate | Carbamoylphosphate | Carbamoyl-phosphate synthase small chain | Synthesis | RHEA | 34755880 |
| MMDBr0024706 | Water | Hydroxylamine | Hydroxylamine reductase | Reduction | RHEA | 34755880 |
