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Scheme of the biosynthetic process for C18‐ and C20‐sphingosine containing sphingolipids. Neuronal gangliosides contain both C18‐ and C20‐sphingosine, whereas neutral glycosphingolipids and sphingomyelin contain the sole C18‐sphingosine. Neuronal gangliosides contain quite exclusively stearic acid, whereas neutral glycosphingolipids and sphingomyelin are heterogeneous in the acyl chain.
