MetenyltetrahydrofolatcyklohydrolasFormattetrahydrofolatligasMetylentetrahydrofolatdehydrogenas (NADP)AminohydrolaserGTP-cyklohydrolasKol-kväveligaserTetrahydrofolaterFormyltetrahydrofolaterDeoxiribodipyrimidinfotolyasAICARTFasePolyglykolsyraBiopterinLigaserGlycinhydroximetyltransferasLeukovorinFolsyraPteriner