The lipid residues in cytolipin H*

Abstract

Analyses were done of the individual fatty acids in two preparations of cytolipin H and the lipid bases in one preparation. A number of fatty acids were present, lignoceric acid predominating. No 2-hydroxy fatty acids were present. Of the lipid bases, 93% was sphingosine and 7% was a more unsaturated residue (dehydrosphingosine?). No dihydrosphingosine was present. Analyses of a number of cytolipin preparations showed them to be similar to cerebrosides derived from non-nervous animal tissues in having a nonuniform distribution of normal saturated fatty acids: C24, C22, and C16 acids were present in high concentration, and C20, C18, and C14 acids were present in very low concentration.