1.17.4.1	ribonucleoside-diphosphate reductase	-	
1.17.4.2	ribonucleoside-triphosphate reductase (thioredoxin)	-	
1.17.4.3	4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase	transferred to EC 1.17.7.1	
1.17.4.4	vitamin-K-epoxide reductase (warfarin-sensitive)	-	
1.17.4.5	vitamin-K-epoxide reductase (warfarin-insensitive)	-