| MMDBr0018068 | Dihydrofolic acid | Tetrahydrofolic acid | Dihydrofolate reductase | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0018071 | Homocysteine | L-Methionine | Methionine synthase | Synthesis | Not Available | 0 | 1 | PathBank |
| MMDBr0018072 | Tetrahydrofolic acid | 5,10-Methylene-THF | Aminomethyltransferase | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018073 | L-Serine | Glycine | Serine hydroxymethyltransferase | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018074 | Tetrahydrofolic acid | N10-Formyl-THF | Bifunctional purine biosynthesis protein PurH | Synthesis | Not Available | 0 | 1 | PathBank |
| MMDBr0018075 | 5'-Phosphoribosyl-N-formylglycineamide | N10-Formyl-THF | Formate-dependent phosphoribosylglycinamide formyltransferase | Transfer of a formyl group | 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 |
| MMDBr0018077 | Tetrahydrofolic acid | N10-Formyl-THF | Methionyl-tRNA formyltransferase | Transfer of a 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 |
| MMDBr0018355 | alpha-Ketoisovaleric acid | Tetrahydrofolic acid | 3-methyl-2-oxobutanoate hydroxymethyltransferase | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018476 | N10-Formyl-THF | Tetrahydrofolic acid | Bifunctional polymyxin resistance protein ArnA | Oxidative decarboxylation | Not Available | 0 | 1 | PathBank |
| MMDBr0018501 | 7,8-dihydrofolate monoglutamate | Tetrahydrofolic acid | Dihydrofolate reductase | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0018750 | Folic acid | Tetrahydrofolic acid | Dihydrofolate reductase | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0019203 | N10-Formyl-THF | Tetrahydrofolic acid | Bifunctional polymyxin resistance protein ArnA | Oxidative decarboxylation | 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 |
| MMDBr0019499 | Glycine | 5,10-Methylene-THF | Aminomethyltransferase, mitochondrial | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0019502 | N10-Formyl-THF | Formic acid | C-1-tetrahydrofolate synthase, mitochondrial | Synthesis | Not Available | 0 | 1 | PathBank |
| MMDBr0019570 | 7,8-dihydrofolate monoglutamate | Tetrahydrofolic acid | Dihydrofolate reductase | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0019571 | N10-Formyl-THF | 5'-Phosphoribosyl-N-formylglycineamide | Phosphoribosylglycinamide formyltransferase | Transfer of a formyl group | Not Available | 0 | 1 | PathBank |
| MMDBr0019754 | alpha-Ketoisovaleric acid | Tetrahydrofolic acid | 3-methyl-2-oxobutanoate hydroxymethyltransferase | Methylation | Not Available | 0 | 1 | PathBank |
| MMDBr0019771 | Dihydrofolic acid | Tetrahydrofolic acid | Dihydrofolate reductase | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0019772 | Folic acid | Tetrahydrofolic acid | Dihydrofolate reductase | Reduction | Not Available | 0 | 1 | PathBank |
| MMDBr0019775 | Homocysteine | L-Methionine | Not Available | Not Available | Not Available | 0 | 0 | PathBank |
| MMDBr0019776 | L-Serine | Glycine | Not Available | Not Available | Not Available | 0 | 0 | PathBank |
