the conversion of n-acylsphinganines to n-acyl-sphingosines was confirmed by incubating cells with [ 14c ] serine followed by unlabeled serine , which resulted in a rapid increase in the sphingosine-to-sphinganine ratio in amide-linked sphingolipids during the chase .
C0007745
n-acyl-sphingosines
C0002482
amide