4.6.1.1	adenylate cyclase	-	
4.6.1.10	6-pyruvoyltetrahydropterin synthase	transferred to EC 4.2.3.12	
4.6.1.11	(+)-delta-cadinene synthase	transferred to EC 4.2.3.13	
4.6.1.12	2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase	-	
4.6.1.13	phosphatidylinositol diacylglycerol-lyase	-	
4.6.1.14	glycosylphosphatidylinositol diacylglycerol-lyase	-	
4.6.1.15	FAD-AMP lyase (cyclizing)	-	
4.6.1.16	tRNA-intron lyase	-	
4.6.1.17	cyclic pyranopterin monophosphate synthase	-	
4.6.1.18	pancreatic ribonuclease	-	
4.6.1.19	ribonuclease T2	-	
4.6.1.2	guanylate cyclase	-	
4.6.1.20	ribonuclease U2	-	
4.6.1.21	Enterobacter ribonuclease	-	
4.6.1.22	Bacillus subtilis ribonuclease	-	
4.6.1.23	ribotoxin	-	
4.6.1.24	ribonuclease T1	-	
4.6.1.25	bacteriophage T4 restriction endoribonuclease RegB	-	
4.6.1.26	uridylate cyclase	-	
4.6.1.3	3-dehydroquinate synthase	transferred to EC 4.2.3.4	
4.6.1.4	chorismate synthase	transferred to EC 4.2.3.5	
4.6.1.5	pentalenene synthase	transferred to EC 4.2.3.7	
4.6.1.6	cytidylate cyclase	-	
4.6.1.7	casbene synthase	transferred to EC 4.2.3.8	
4.6.1.8	(-)-endo-fenchol synthase	transferred to EC 4.2.3.10	
4.6.1.9	sabinene-hydrate synthase	transferred to EC 4.2.3.11