| MMDBr0006139 | Indole | Indoxyl | cytochrome P450, family 2, subfamily E, polypeptide 1 | Not Available | Miscellaneous | 1 | 0 | VMH |
| MMDBr0016636 | Indole | Indoxyl | Indole-3-acetate monooxygenase | Oxygenation | Not Available | 0 | 2 | RHEA |
| MMDBr0016637 | Indole | Indoxyl | Indole-3-acetate monooxygenase | Oxygenation | Not Available | 0 | 2 | RHEA |
| MMDBr0018027 | Nitrate | Nitrite | Respiratory nitrate reductase 1 alpha chain | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0018028 | Nitrite | Ammonia | Nitrite reductase (NADH) large subunit | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0018029 | Nitrite | Ferricytochrome c | Cytochrome c-552 | Not Available | Not Available | 0 | 1 | PathBank |
| MMDBr0018030 | Carbon dioxide | Hydrogen carbonate | Carbonic anhydrase 1 | Carbonate dehydration (or hydration of CO2) | Not Available | 0 | 1 | PathBank |
| MMDBr0018032 | Carbon dioxide | Carbamic acid | Carbamate kinase | Phosphorylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018033 | Isochorismate | 2,3-Dihydro-2,3-dihydroxybenzoic acid | Enterobactin synthase component B | Synthesis | Not Available | 0 | 1 | PathBank |
| MMDBr0018043 | Water | Methanol | Pimeloyl-[acyl-carrier protein] methyl ester esterase | Hydrolysis of an ester group | Not Available | 0 | 1 | PathBank |
| MMDBr0018051 | L-Glutamine | L-Glutamic acid | Glutaminase 2 | Not Available | Not Available | 0 | 1 | PathBank |
| MMDBr0018053 | D-Glutamine | D-Glutamic acid | Glutaminase 2 | Not Available | Not Available | 0 | 1 | PathBank |
| MMDBr0018058 | L-Aspartate-semialdehyde | (2S,4S)-4-Hydroxy-2,3,4,5-tetrahydrodipicolinate | 4-hydroxy-tetrahydrodipicolinate synthase | Synthesis | Not Available | 0 | 1 | PathBank |
| MMDBr0018059 | (2S,4S)-4-Hydroxy-2,3,4,5-tetrahydrodipicolinate | (S)-2,3,4,5-tetrahydrodipicolinate | 4-hydroxy-tetrahydrodipicolinate reductase | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0018060 | Succinyl-CoA | N-Succinyl-2-amino-6-ketopimelate | 2,3,4,5-tetrahydropyridine-2,6-dicarboxylate N-succinyltransferase | Transfer of succinyl moiety | Not Available | 0 | 1 | PathBank |
| MMDBr0018062 | N-Succinyl-L,L-2,6-diaminopimelate | Succinic acid | Succinyl-diaminopimelate desuccinylase | Hydrolysis of carbon-nitrogen bond | Not Available | 0 | 1 | PathBank |
| MMDBr0018073 | L-Serine | Glycine | Serine hydroxymethyltransferase | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018076 | Formic acid | N10-Formyl-THF | Formyltetrahydrofolate deformylase | Removal of the N-terminal formyl group | Not Available | 0 | 1 | PathBank |
| MMDBr0018078 | Tetrahydrofolic acid | Glycineamideribotide | Formate-dependent phosphoribosylglycinamide formyltransferase | Transfer of a formyl group | Not Available | 0 | 1 | PathBank |
| MMDBr0018079 | 5,10-Methenyltetrahydrofolic acid | N5-Formyl-THF | Aminomethyltransferase | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018083 | Oxalacetic acid | Citric acid | Not Available | Not Available | Not Available | 0 | 0 | PathBank |
| MMDBr0018085 | Oxalacetic acid | Citric acid | Citrate synthase | Synthesis | Not Available | 0 | 1 | PathBank |
| MMDBr0018086 | Citric acid | cis-Aconitic acid | Aconitate hydratase A | Hydration/dehydration of C-O bond | Not Available | 0 | 1 | PathBank |
| MMDBr0018087 | cis-Aconitic acid | D-threo-Isocitric acid | Aconitate hydratase A | Hydration/dehydration of C-O bond | Not Available | 0 | 1 | PathBank |
