1.1.1.300	NADP-retinol dehydrogenase	the visual cycle I (vertebrates)	-	
1.1.1.315	11-cis-retinol dehydrogenase	the visual cycle I (vertebrates)	-	
2.3.1.135	phosphatidylcholine-retinol O-acyltransferase	the visual cycle I (vertebrates)	-	
3.1.1.64	retinoid isomerohydrolase	the visual cycle I (vertebrates)	-