2.3.1.135 phosphatidylcholine + retinol-[cellular-retinol-binding-protein] = 2-acylglycerophosphocholine + retinyl-ester-[cellular-retinol-binding-protein] - - 2.3.1.135 phosphatidylcholine + retinol-[cellular-retinol-binding-protein] = 2-acylglycerophosphocholine + retinyl-ester-[cellular-retinol-binding-protein] C161 and H60 form a catalytic dyad essential for activity, Q177 and D67 may play a non-essential role in catalysis, identification of the active site, reaction mechanism 657964 2.3.1.135 phosphatidylcholine + retinol-[cellular-retinol-binding-protein] = 2-acylglycerophosphocholine + retinyl-ester-[cellular-retinol-binding-protein] enzyme mechanism and role in the visual cycle 658662 2.3.1.135 phosphatidylcholine + retinol-[cellular-retinol-binding-protein] = 2-acylglycerophosphocholine + retinyl-ester-[cellular-retinol-binding-protein] mechanism, Cys161 and Tyr154 are essential for activity 658075