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Sphingosine 1-phosphate turnover C


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S1P (sphingosine 1-phosphate) is a pro-survival signal, in contrast to ceramide. It is formed by the sphingosine kinase-catalysed phosphorylation of sphingosine. S1P can be released from cells to act as an agonist at a family of five G protein-coupled receptors (S1P1-5) but also has intracellular targets. S1P can be dephosphorylated back to sphingosine or hydrolysed to form hexadecanal and phosphoethanolamine. Sphingosine choline phosphotransferase (EC generates sphingosylphosphocholine from sphingosine and CDP-choline. Sphingosine β-galactosyltransferase (EC generates from sphingosine in the presence of UDP-α-D-galactose. The molecular identities of these enzymes have not been confirmed.


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NC-IUPHAR subcommittee and family contributors

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How to cite this family page

Database page citation:

Susan Pyne. Sphingosine 1-phosphate turnover. Accessed on 25/03/2019. IUPHAR/BPS Guide to PHARMACOLOGY,

Concise Guide to PHARMACOLOGY citation:

Alexander SPH, Fabbro D, Kelly E, Marrion NV, Peters JA, Faccenda E, Harding SD, Pawson AJ, Sharman JL, Southan C, Davies JA; CGTP Collaborators. (2017) The Concise Guide to PHARMACOLOGY 2017/18: Enzymes. Br J Pharmacol. 174 Suppl 1: S272-S359.