Error: Pathway image not found.
Last Updated: 2018-12-22
The biosynthesis of tetrahydrofolate begins with guanosine triphosphate interacting with water through GTP-cyclohydrlase resulting in the release of a formic acid, a hydrogen ion and a dihydroneopterin triphosphate. The latter compound then reacts with water in a spontaneous reaction resulting in the release of pyrophosphate, hydrogen ion and dihydroneopterinphosphate. Dihydroneopterin phosphate then reacts spontaneously with water resulting in the release of phosphate and 7,8-dihydroneopterin. This compound reacts wuth a folic acid synthesis enzyme resulting in the release of glycoaldehyde and 6-hydroxymethyl-7,8-dihydropterin. The latter compound is then diphosphorylated through an ATP driven folic acid synthesis resulting in the release of AMP, a hydrogen ion and 6-hydroxymethyl-7,8-dihydropterin diphosphate. This compound reacts with p-Aminobenzoic acid that is release from chorismate, the reaction happens through a folic acid synthesis resulting in the pyrophosphate and 7,8-dihydropteric acid. The latter compound reacts with glutamic acid through an ATP driven folic acid synthesis 3 resulting in the release of hydrogen ion, a phosphate, ADP and a 7,8-dihydrofolate monoglutamate. The latter compound reacts with a hydrogen ion through a NADPH through a dihydrofolate reductase resulting in the release of NADP and tetrahydrofolate. This compound can also be a result of 5,10 methenyltetrahydrofolic acid reacting with water through a mitochondrials c1-tetrahydrofolate synthase which releases a 10-formyltetrahydrofolate. This compound in turn reacts with a 5-phosphoribosyl-N-formylglycinamide through a glycinamide ribotide transformylase resulting in the release of a tetrahydrofolate and a 5'phosphoribosyl-N-fromylglycinamide.
Tetrahydrofolate Biosynthesis References
Appling DR: Compartmentation of folate-mediated one-carbon metabolism in eukaryotes. FASEB J. 1991 Sep;5(12):2645-51.Pubmed: 1916088
Illarionova V, Eisenreich W, Fischer M, Haussmann C, Romisch W, Richter G, Bacher A: Biosynthesis of tetrahydrofolate. Stereochemistry of dihydroneopterin aldolase. J Biol Chem. 2002 Aug 9;277(32):28841-7. doi: 10.1074/jbc.M204046200. Epub 2002 May 30.Pubmed: 12039964
Highlighted elements will appear in red.
Enter relative concentration values (without units). Elements will be highlighted in a color gradient where red = lowest concentration and green = highest concentration. For the best results, view the pathway in Black and White.
Visualize Compound Data
Visualize Protein Data