上游充通大兽 SHANGHAI JIAO TONG UNIVERSITY The backbone in sphingomyelin(鞘磷脂)is sphingosine(鞘氨 )an amino alcohol that contains a long,unsaturated hydrocarbon chain. In sphingomyelin(鞘磷脂)，the amino group of the sphingosine backbone is linked to a fatty acid by an amide bond. In addition,the primary hydroxyl group of sphingosine is esterified to phosphorylcholine(磷酰胆碱). +H3N H3C(H2C)12 OH H3C(H2C)12~ CH3 HO CH sphingosine 鞘氨醇 CH3 Sphingomyelin(鞘磷脂)The backbone in sphingomyelin(鞘磷脂) is sphingosine (鞘氨 醇), an amino alcohol that contains a long, unsaturated hydrocarbon chain. In sphingomyelin (鞘磷脂), the amino group of the sphingosine backbone is linked to a fatty acid by an amide bond. In addition, the primary hydroxyl group of sphingosine is esterified to phosphorylcholine (磷酰胆碱). sphingosine 鞘氨醇 Sphingomyelin (鞘磷脂)