biosynthesis of sphingomyelin from ceramides was investigated in lung subcellular fractions by incubating a lyophilized mixture of albumin and subcellular fraction ( 0.1-0.2 mg of protein ) coated with [ acyl-14c ] -ceramide and phosphatidyl [ methyl-3h ] choline in tris-buffer .
C0001924
albumin
C0033684
protein