Ether-Linked Lipids in Molluscs

Glyceryl-ether monooxygenase [EC 1.14.16.5]. A microsomal enzyme of ether lipid metabolism

“…The absolute configurations of the above three naturally occurring alcohols 2 are also consistent with optical rotatory dispersion studies. 30,31 On the rational assumption that glyceryl ethers, with a large variety of alkyl chains, from marine animals, 32,33 mammals and birds, 34 plants, 35 protozoa, 36 and bacteria 37,38 are formed by common biosynthetic pathways it is likely that they all have the same stereochemical configurations at C2 of the glycerol moiety. Early accounts on the history of glyceryl ether lipids have been admirably reviewed.…”

Effects of Growth Temperature on Fatty Acid and Alk-1-Enyl Group Compositions of Veillonella parvula and Megasphaera elsdenii Phospholipids

“…1-Alkenyl-2-acyl glycerolipids (plasmalogens) are major constituents of certain mammalian tissues, including heart, brain white matter, peripheral nerves, and skeletal muscle. These lipids are also found in avian tissues and in many invertebrates (15,29,30). The presence of plasmalogens in procaryotes appears to be confined to strict anaerobes, in which they often represent a substantial fraction of the total lipid (9,17,31).…”

“…The total proportion of cyclopropane and unsaturated acyl and alk-1-enyl chains was more than 65% at all growth temperatures studied, and there was no discernible increase in the sum of these moieties at the lower growth temperatures.1-Alkenyl-2-acyl glycerolipids (plasmalogens) are major constituents of certain mammalian tissues, including heart, brain white matter, peripheral nerves, and skeletal muscle. These lipids are also found in avian tissues and in many invertebrates (15,29,30). The presence of plasmalogens in procaryotes appears to be confined to strict anaerobes, in which they often represent a substantial fraction of the total lipid (9, 17, 31).…”