title: Incorporation of fatty acids into phosphatidylcholine species by liver homogenates from chick embryos.
abstract: Labeled palmitic, stearic, oleic, linoleic and araquidonic acids were incorporated into phosphatidylcholines by incubation with liver homogenates from 13, 17 and 21 day-old chick embryos. Palmitic acid was incorporated into dienoic and tetraenoic phosphatidylcholines whereas linoleic acid was incorporated into dienoic phosphatidylcholines. Labeled palmitic and linoleic acids were specifically found into positions 1 and 2 of the phosphatidylcholine molecule, respectively. Under in vitro conditions, the incorporation of either palmitic or linoleic acids into phosphatidylcholines was 2-3 fold greater in liver homogenates from 17 day-old chick embryos than in those from 13 or 21 day-old ones.
mesh_terms: D000367:Age Factors; D000818:Animals; D001095:Arachidonic Acids / Q000378:metabolism; D002642:Chick Embryo / Q000378:metabolism*; D005227:Fatty Acids / Q000378:metabolism*; D008041:Linoleic Acids / Q000378:metabolism; D008099:Liver / Q000378:metabolism*; D009829:Oleic Acids / Q000378:metabolism; D010169:Palmitic Acids / Q000378:metabolism; D010713:Phosphatidylcholines / Q000096:biosynthesis*; D013229:Stearic Acids / Q000378:metabolism
chemical_list: D001095:Arachidonic Acids; D005227:Fatty Acids; D008041:Linoleic Acids; D009829:Oleic Acids; D010169:Palmitic Acids; D010713:Phosphatidylcholines; D013229:Stearic Acids