Folate synthesis enzyme

Folate synthesis enzymes are a group of metabolic enzymes essential for generating reduced folate cofactors, which are necessary for one-carbon transfer reactions in numerous cellular processes including DNA and RNA biosynthesis, methylation of DNA and proteins, and amino acid metabolism[1][5][6]. In bacteria and lower eukaryotes, these enzymes enable folate (vitamin B9) to be synthesized de novo, while in mammals, similar enzymes process dietary folates for cellular use. Key enzymes in the folate synthesis pathway include dihydropteroate synthase, dihydrofolate reductase, thymidylate synthase, folylpolyglutamate synthase, and γ-glutamyl hydrolase[2][3][4][7]. These enzymes are recognized as important therapeutic targets, particularly for antimicrobial and anticancer drugs, due to their essential role in cell proliferation and survival. Drugs that inhibit folate synthesis enzymes disrupt nucleotide synthesis and cell division, forming the basis for many antibiotics (e.g., sulfonamides, trimethoprim) and antineoplastic agents (e.g., methotrexate)[3][5][6]. Notably, due to overlapping functions and the collective naming, "Folate synthesis enzymes" is too broad to denote a single molecular entity and refers instead to a family of targets—thus, it is an imprecise identifier and should be replaced whenever possible with a specific enzyme name[2][3][7].

Other names

Folate biosynthetic enzymefolic acid synthesis enzymefolate metabolism enzyme

Inhibition of folate synthesis pathway enzymes, leading to disruption of DNA synthesis and repair - Inhibition of one-carbon transfer reactions - Antimetabolite action to block nucleotide and amino acid biosynthesis