Ceramide cholinephosphotransferase

{{infobox enzyme

| Name = ceramide cholinephosphotransferase

| EC_number = 2.7.8.3

| CAS_number = 9026-14-6

| GO_code = 0047493

| image =

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}}

In enzymology, a ceramide cholinephosphotransferase ({{EC number|2.7.8.3}}) is an enzyme that catalyzes the chemical reaction

:CDP-choline + N-acylsphingosine $\backslash rightleftharpoons$ CMP + sphingomyelin

Thus, the two substrates of this enzyme are CDP-choline and N-acylsphingosine, whereas its two products are CMP and sphingomyelin.

This enzyme belongs to the family of transferases, specifically those transferring non-standard substituted phosphate groups. The systematic name of this enzyme class is CDP-choline:N-acylsphingosine cholinephosphotransferase. This enzyme is also called phosphorylcholine-ceramide transferase. This enzyme participates in sphingolipid metabolism.