An Overview of Metabolism and Biochemical Energy -The acetyl group in acetyl CoA is linked to the sulfur atom of phosphopantetheine,which is itself linked to adenosine 3',5'-bisphosphate CH3 O CH3C-SCH2CH2NHCCH2CH2NHCCHCCH2OP-OPOCH2 HO CH3 0 0 Phosphopantetheine 203P0 OH Adenosine 3',5'-bisphosphate Acetyl CoA-a thioester ▪ The acetyl group in acetyl CoA is linked to the sulfur atom of phosphopantetheine, which is itself linked to adenosine 3’,5’-bisphosphate An Overview of Metabolism and Biochemical Energy