Folate-dependent metabolic process

"Folate-dependent metabolic processes" refer collectively to a network of biochemical reactions that require folates as essential cofactors. These processes are central to one-carbon metabolism, which involves transferring single carbon units necessary for synthesizing nucleotides (for DNA/RNA), certain amino acids, and S‐adenosylmethionine—the universal methyl donor used in numerous biological methylation reactions. Key enzymes include methionine synthase, thymidylate synthase, dihydrofolate reductase, serine hydroxymethyltransferases, among others. Disruption at any point can lead to clinical consequences such as megaloblastic anemia or increased risk for cancer due to aberrant DNA synthesis/methylation. The term "Folate-dependent metabolic processes" describes a pathway, not a single molecular target; thus it is not considered a canonical therapeutic target but rather encompasses several druggable proteins within its network.

Other names

Folate metabolismOne-carbon metabolismFolate-mediated one-carbon metabolismFolate pathway

Mechanisms relate to inhibition of key enzymes in the folate pathway. Inhibition of dihydrofolate reductase blocks regeneration of tetrahydrofolic acid, halting DNA synthesis. Inhibition of thymidylate synthase prevents dTMP formation for DNA replication. Antifolates compete with natural folates for enzyme binding or cellular uptake.