A protein which transfers molecules containing this functional group was targeted by Pfizer’s clinically ineffective inhibitor torcetrapib (“tor-SET-tra-pib”). A subclass of drugs defined by this functional group more often cause an allergic reaction reversed with Intralipid and characterized by tinnitus, a metallic taste, and seizures. Pralidoxime can free up serine-204 of the Ser-His-Glu triad to bind this functional group if it is administered before enzyme “aging” occurs. The hydrolysis of this functional group forms benzoyl·ec·gonine in the metabolism of (*) cocaine. CETP exchanges molecules containing this functional group between HDL (10[1])and LDL. An enzyme that cleaves this functional group is inhibited by organophosphates at the synaptic cleft, preventing it from breaking down acetylcholine. For 10 points, which functional group forms the bonds between the three fatty acid chains and glycerol backbone of triglycerides? ■END■