| thymidine + ATP ↔ dTMP + ADP + H+ | (catalyzed by Tdk) |
| ADP + phosphoenolpyruvate + H+ ↔ pyruvate + ATP | (catalyzed by pyruvate kinase) |
| pyruvate + NADH + H+ ↔ lactate + NAD+ | (catalyzed by lactate dehydrogenase) |
| thymidine + ATP ↔ dTMP + ADP + H+ | (catalyzed by Tdk) |
| ADP + phosphoenolpyruvate + H+ ↔ pyruvate + ATP | (catalyzed by pyruvate kinase) |
| pyruvate + NADH + H+ ↔ lactate + NAD+ | (catalyzed by lactate dehydrogenase) |