Topic Highlight
Copyright ©2011 Baishideng Publishing Group Co.
World J Biol Chem. Feb 26, 2011; 2(2): 25-34
Published online Feb 26, 2011. doi: 10.4331/wjbc.v2.i2.25
Figure 1
Figure 1 Sphingolipid structure and metabolism. All sphingolipids contain a long chain base. Sphingomyelin (SM) is metabolized to ceramide by sphingomyelinase. Ceramide is further metabolized to sphingosine and sphingosine 1-phosphate (S1P) by ceramidase and sphingosine kinases (SphKs), respectively. Subsequently, S1P is irreversibly degraded to hexadecenal and ethanolamine phosphate by S1P ligase (SPL). S1P can be recycled to sphingosine and then ceramide by S1P phosphatase (S1PP) and ceramide synthase, respectively.