| MMDBr0019776 | L-Serine | Glycine | Not Available | Not Available | Not Available | 0 | 0 | PathBank |
| MMDBr0024572 | L-Serine | 5'-Deoxyadenosine | Serine-type anaerobic sulfatase-maturating enzyme | Not Available | Not Available | 0 | 3 | RHEA |
| MMDBr0025872 | L-Serine | diphosphate | Uridine 5'-monophosphate transferase | Not Available | Not Available | 0 | 1 | RHEA |
| MMDBr0026152 | Hydroxypyruvic acid | L-Serine | Ornithine aminotransferase | Amine group addition | Not Available | 0 | 38 | RHEA |
| MMDBr0019140 | 2-Aminomalonate semialdehyde | L-Serine | NADP-dependent 3-hydroxy acid dehydrogenase YdfG | Dehydrogenation | Not Available | 0 | 1 | PathBank |
| MMDBr0036150 | L-Serine | 3-hydroxypyruvic acid | L-amino acid dehydrogenase | Dehydrogenation | Not Available | 0 | 1 | RHEA |
| MMDBr0024728 | L-Serine | Hydrogen Ion | [Pyruvate dehydrogenase (acetyl-transferring)] kinase 1, mitochondrial | Dehydrogenation; Phosphorylation | Not Available | 0 | 3 | RHEA |
| MMDBr0025149 | L-Serine | Hydrogen Ion | Isocitrate dehydrogenase kinase/phosphatase | Dehydrogenation; Phosphorylation | Not Available | 0 | 122 | RHEA |
| MMDBr0024401 | L-Serine | Adenosine 3',5'-diphosphate | Holo-[acyl-carrier-protein] synthase | Dehydrogenation; Synthesis | Not Available | 0 | 588 | RHEA |
| MMDBr0018239 | DL-O-Phosphoserine | L-Serine | Phosphoserine phosphatase | Dephosphorylation | Not Available | 0 | 1 | PathBank |
| MMDBr0019496 | DL-O-Phosphoserine | L-Serine | Phosphoserine phosphatase | Dephosphorylation | Not Available | 0 | 1 | PathBank |
| MMDBr0025707 | L-Serine | Uridine 5'-diphosphate | UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase GtfA subunit | Glycosylation | Not Available | 0 | 5 | RHEA |
| MMDBr0018647 | L-Serine | 2-Aminoacrylic acid | L-serine dehydratase 2 | Hydration/dehydration of C-O bond | Not Available | 0 | 1 | PathBank |
| MMDBr0018648 | L-Serine | 2-Aminoacrylic acid | L-serine dehydratase 1 | Hydration/dehydration of C-O bond | Not Available | 0 | 1 | PathBank |
| MMDBr0019512 | L-Serine | 2-aminoprop-2-enoate | Catabolic L-serine/threonine dehydratase | Hydration/dehydration of C-O bond | Not Available | 0 | 1 | PathBank |
| MMDBr0036105 | 2,3-Dihydroxybenzoylserine | L-Serine | Acylamidase | Hydrolysis | Not Available | 0 | 1 | RHEA |
| MMDBr0018222 | L-Serine | Adenosine monophosphate | Serine--tRNA ligase | Ligation | Not Available | 0 | 1 | PathBank |
| MMDBr0024411 | L-Serine | Hydrogen Ion | Type-2 serine--tRNA ligase | Ligation | Not Available | 0 | 802 | RHEA |
| MMDBr0024412 | L-Serine | Hydrogen Ion | Serine--tRNA ligase, cytoplasmic | Ligation | Not Available | 0 | 1 | RHEA |
| MMDBr0025060 | L-Serine | Hydrogen Ion | Type-2 serine--tRNA ligase | Ligation | Not Available | 0 | 802 | RHEA |
| MMDBr0018073 | L-Serine | Glycine | Serine hydroxymethyltransferase | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0019497 | L-Serine | Glycine | Serine hydroxymethyltransferase, cytosolic | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0019498 | L-Serine | Glycine | Serine hydroxymethyltransferase, mitochondrial | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018240 | L-Serine | O-Acetylserine | Serine acetyltransferase | N-Acetylation | Not Available | 0 | 1 | PathBank |
| MMDBr0025680 | L-Serine | CoA | Serine/threonine-protein acetyltransferase YopJ | N-Acetylation | Not Available | 0 | 8 | RHEA |
