ABSTRACT
Sphingolipids (SPL), the general name for lipids containing a sphingoid long-chain base, are one of the most chemically and functionally diverse classes of biomolecules [1]. Sphingomyelin (SM) and glycosphingolipids (GSPL) constitute the major complex SPL in mammalian cells, both of which contain Cer as a lipid portion and phosphorylcholine or sugars, respectively, as a hydrophilic moiety. Cer, composed of a sphingoid base (SB) and an amide-linked fatty acid (FA), serves as the precursor for almost all SPL [1].
