| dTMP | 2′-deoxythymidine-5′-monophosphate |
| dUMP | 2′-deoxyuridine-5′-monophosphate |
| TSase | Thymidylate synthase |
| DHFR | Dihydrofolate reductase |
| FDTS | Flavin dependent thymidylate synthase |
| MTHF, CH2H4folate | N5,N10-methylene-5,6,7,8,-tetrahydrofolate |
| DHF, H2folate | Dihydrofolate |
| THF, H4folate | Tetrahydrofolate |
| FAD | Flavin adenine dinucleotide |
| NADPH | Nicotinamide adenine dinucleotide phosphate |