| MMDBr0012954 | L-Aspartic acid | Argininosuccinic acid | Argininosuccinate synthase | Synthesis | RHEA | 34755880 |
| MMDBr0013269 | Magnesium | Mg-protoporphyrin IX | Magnesium-chelatase 60 kDa subunit | Chelation | RHEA | 34755880 |
| MMDBr0014407 | Argininosuccinic acid | fumarate | Bifunctional protein ArgHA | Non-hydrolytic bond cleavage (or its reversal) | RHEA | 34755880 |
| MMDBr0017894 | L-Histidinol | L-Histidine | Histidinol dehydrogenase | Dehydrogenation | RHEA | 34755880 |
| MMDBr0017916 | 5-[(5-phospho-1-deoxy-D-ribulos-1-ylimino)methylamino]-1-(5-phospho-beta-D-ribosyl)imidazole-4-carboxamide | AICAR | Imidazole glycerol phosphate synthase subunit HisH | Synthesis | RHEA | 34755880 |
| MMDBr0024415 | (S)-4-Amino-5-oxopentanoate | Hydrogen Ion | Glutamyl-tRNA reductase | Reduction | RHEA | 34755880 |
| MMDBr0024833 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | Light-independent protochlorophyllide reductase iron-sulfur ATP-binding protein | Reduction | RHEA | 34755880 |
| MMDBr0025105 | S-Adenosylmethionine | S-Adenosylhomocysteine | Ribosomal RNA small subunit methyltransferase H | Methylation | RHEA | 34755880 |
| MMDBr0025167 | L-Lysine | Hydrogen Ion | tRNA(Ile)-lysidine synthase | Synthesis | RHEA | 34755880 |
