2.7.4.6	nucleoside-diphosphate kinase	UTP and CTP de novo biosynthesis	-	
2.7.4.14	UMP/CMP kinase	UTP and CTP de novo biosynthesis	-	
2.7.4.22	UMP kinase	UTP and CTP de novo biosynthesis	-	
6.3.4.2	CTP synthase (glutamine hydrolysing)	UTP and CTP de novo biosynthesis	-