| MMDBr0012954 | L-Aspartic acid | Argininosuccinic acid | Argininosuccinate synthase | Synthesis | RHEA | 34755880 |
| MMDBr0013245 | L-Homoserine | O-Acetyl-L-homoserine | L-serine/homoserine O-acetyltransferase | N-Acetylation; Synthesis | RHEA | 34755880 |
| MMDBr0015481 | hydroxyurea | Acetic acid | O-ureido-L-serine synthase | Synthesis | RHEA | 34755880 |
| MMDBr0015529 | O-ureido-L-serine | O-ureido-D-serine | O-ureido-serine racemase | Racemization | RHEA | 34755880 |
| MMDBr0015530 | O-ureido-D-serine | Cycloserine | Cycloserine biosynthesis protein DcsG | Synthesis | RHEA | 34755880 |
| MMDBr0015540 | N(omega)-Hydroxyarginine | hydroxyurea | N(omega)-hydroxy-L-arginine amidinohydrolase | Hydrolysis of bond | RHEA | 34755880 |
| MMDBr0017968 | L-Tyrosine | 3-methyl-L-tyrosine | L-tyrosine C(3)-methyltransferase | Methylation | RHEA | 34755880 |
| MMDBr0015787 | 3-methyl-L-tyrosine | 5-hydroxy-3-methyl-L-tyrosine | 3-methyl-L-tyrosine peroxygenase | Oxygenation | RHEA | 34755880 |
| MMDBr0016117 | 6-demethylmitomycin B | Mitomycin B | Mitomycin biosynthesis 6-O-methyltransferase | Methylation | RHEA | 34755880 |
| MMDBr0016118 | 6-demethylmitomycin A | Mitomycin A | Mitomycin biosynthesis 6-O-methyltransferase | Methylation | RHEA | 34755880 |
| MMDBr0016355 | 5-hydroxy-3-methyl-L-tyrosine | 5-hydroxy-3-methyl-O-methyl-L-tyrosine | O-methyltransferase SfmM3 | Methylation | RHEA | 34755880 |
| MMDBr0016855 | streptothricin F | N(beta)-acetylstreptothricin F | Streptothricin acetyltransferase A | N-Acetylation | RHEA | 34755880 |
| MMDBr0017866 | Hydrogen sulfide | Acetic acid | O-acetylserine sulfhydrylase | Synthesis | RHEA | 34755880 |
| MMDBr0017915 | L-Serine | O-Acetyl-L-serine | Serine acetyltransferase | N-Acetylation | RHEA | 34755880 |
| MMDBr0025753 | Glycine | diphosphate | Nonribosomal peptide synthase SfmB | Synthesis | RHEA | 34755880 |
| MMDBr0025754 | Glycine | diphosphate | Nonribosomal peptide synthase SfmB | Synthesis | RHEA | 34755880 |
