F

Xanthine permease
Futalosine hydrolase
Thymidylate synthase ThyX
Adenylosuccinate lyase
Phosphoribosylaminoimidazole-succinocarboxamide synthase
Phosphoribosylglycinamide formyltransferase
Phosphoribosylamine--glycine ligase
Phosphoribosylformylglycinamidine synthase
Dihydroorotase
Xanthine phosphoribosyltransferase