1.0 2011-09-21 00:39:06 UTC 2015-07-21 06:57:59 UTC FDB024053 CE(20:0) CE(20:0) is a cholesterol fatty acid ester or simply a cholesterol ester (CE). Cholesterol esters are cholesterol molecules with long-chain fatty acids linked to the hydroxyl group. They are much less polar than free cholesterol and appear to be the preferred form for transport in plasma and for storage. Cholesterol esters do not contribute to membranes but are packed into intracellular lipid particles or lipoprotein particles. Because of the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of C18 fatty acids. Cholesterol esters are major constituents of the adrenal glands and they also accumulate in the fatty lesions of atherosclerotic plaques. Cholesterol esters are also major constituents of the lipoprotein particles carried in blood (HDL, LDL, VLDL). The cholesterol esters in high-density lipoproteins (HDL) are synthesized largely by transfer of fatty acids to cholesterol from position sn-2 (or C-2) of phosphatidylcholine catalyzed by the enzyme lecithin cholesterol acyl transferase (LCAT). The enzyme also promotes the transfer of cholesterol from cells to HDL. As cholesterol esters accumulate in the lipoprotein core, cholesterol is removed from its surface thus promoting the flow of cholesterol from cell membranes into HDL. This in turn leads to morphological changes in HDL, which grow and become spherical. Subsequently, cholesterol esters are transferred to the other lipoprotein fractions LDL and VLDL, a reaction catalyzed by cholesteryl ester transfer protein. Another enzyme, acyl-CoA:cholesterol acyltransferase (ACAT) synthesizes cholesterol esters from CoA esters of fatty acids and cholesterol. Cholesterol ester hydrolases liberate cholesterol and free fatty acids when required for membrane and lipoprotein formation, and they also provide cholesterol for hormone synthesis in adrenal cells. [HMDB] 1-Arachidonyl-cholesterol 20:0 Cholesterol ester CE(20:0) CE(20:0/0:0) Cholest-5-en-3b-yl eicosanoate Cholest-5-en-3b-yl eicosanoic acid Cholesterol 1-arachidonyl Cholesterol 1-eicosanoate Cholesterol 1-eicosanoic acid Cholesterol arachidate Cholesterol Ester(20:0) Cholesterol Ester(20:0/0:0) Cholesteryl 1-arachidonyl Cholesteryl 1-eicosanoate Cholesteryl 1-eicosanoic acid Cholesteryl arachidate Cholesteryl eicosanoate Cholesteryl eicosanoic acid Eicosanoic acid Eicosanoic acidcholesteryl ester C47H84O2 681.1687 680.647131932 (2R,5S,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl icosanoate cholesteryl arachidate 2573-03-7 CCCCCCCCCCCCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C InChI=1S/C47H84O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-27-45(48)49-40-32-34-46(5)39(36-40)28-29-41-43-31-30-42(38(4)26-24-25-37(2)3)47(43,6)35-33-44(41)46/h28,37-38,40-44H,7-27,29-36H2,1-6H3/t38-,40+,41?,42?,43?,44?,46+,47-/m1/s1 SUOVMGLZSOAHJY-YEYBIBAWSA-N belongs to the class of organic compounds known as cholesteryl esters. Cholesteryl esters are compounds containing an esterified cholestane moiety. Cholesteryl esters Organic compounds Lipids and lipid-like molecules Steroids and steroid derivatives Steroid esters Aliphatic homopolycyclic compounds Carbonyl compounds Carboxylic acid esters Cholesterols and derivatives Delta-5-steroids Hydrocarbon derivatives Monocarboxylic acids and derivatives Organic oxides Aliphatic homopolycyclic compound Carbonyl group Carboxylic acid derivative Carboxylic acid ester Cholestane-skeleton Cholesterol Cholesteryl ester Delta-5-steroid Hydrocarbon derivative Monocarboxylic acid or derivatives Organic oxide Organic oxygen compound Organooxygen compound Solid logp 10.96 ALOGPS logs -7.96 ALOGPS solubility 7.55e-06 g/l ALOGPS logp 15.81 ChemAxon pka_strongest_basic -7 ChemAxon iupac (2R,5S,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl icosanoate ChemAxon average_mass 681.1687 ChemAxon mono_mass 680.647131932 ChemAxon smiles CCCCCCCCCCCCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C ChemAxon formula C47H84O2 ChemAxon inchi InChI=1S/C47H84O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-27-45(48)49-40-32-34-46(5)39(36-40)28-29-41-43-31-30-42(38(4)26-24-25-37(2)3)47(43,6)35-33-44(41)46/h28,37-38,40-44H,7-27,29-36H2,1-6H3/t38-,40+,41?,42?,43?,44?,46+,47-/m1/s1 ChemAxon inchikey SUOVMGLZSOAHJY-YEYBIBAWSA-N ChemAxon polar_surface_area 26.3 ChemAxon refractivity 212.61 ChemAxon polarizability 92.31 ChemAxon rotatable_bond_count 25 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 23264 Specdb::MsMs 317617 Specdb::MsMs 317618 Specdb::MsMs 317619 Specdb::MsMs 364120 Specdb::MsMs 364121 Specdb::MsMs 364122 Specdb::MsMs 2735807 Specdb::MsMs 2735808 Specdb::MsMs 2735809 Specdb::MsMs 2973678 Specdb::MsMs 2973679 Specdb::MsMs 2973680 HMDB06740 Anatidae Type 1 specific Anatidae 8830 Beefalo Type 1 specific Bos taurus X Bison bison 297284 Bison Type 1 specific Bison bison 9901 Buffalo Type 1 specific Bubalus bubalis 89462 Cattle (Beef, Veal) Type 1 specific Bos taurus 9913 Chicken Type 1 specific Gallus gallus 9031 Columbidae (Dove, Pigeon) Type 1 specific Columbidae 8930 Deer Type 1 specific Cervidae 9850 Domestic goat Type 1 specific Capra aegagrus hircus 9925 Domestic pig Type 1 specific Sus scrofa domestica 9825 Elk Type 1 specific Cervus canadensis 1574408 Emu Type 1 specific Dromaius novaehollandiae 8790 European rabbit Type 1 specific Oryctolagus 9984 Greylag goose Type 1 specific Anser anser 8843 Guinea hen Type 1 specific Numida meleagris 8996 Horse Type 1 specific Equus caballus 9796 Mallard duck Type 1 specific Anas platyrhynchos 8839 Mountain hare Type 1 specific Lepus timidus 62621 Mule deer Type 1 specific Odocoileus 9871 Ostrich Type 1 specific Struthio camelus 8801 Pheasant Type 1 specific Phasianus colchicus 9054 Quail Type 1 specific Phasianidae 9005 Rabbit Type 1 specific Leporidae 9979 Rock ptarmigan Type 1 specific Lagopus muta 64668 Sheep (Mutton, Lamb) Type 1 specific Ovis aries 9940 Squab Type 1 specific Columba 8931 Turkey Type 1 specific Meleagris gallopavo 9103 Velvet duck Type 1 specific Melanitta fusca 371864 Wild boar Type 1 specific Sus scrofa 9823 Liver carboxylesterase 1 P23141 CES1 Lysosomal acid lipase/cholesteryl ester hydrolase P38571 LIPA Neutral cholesterol ester hydrolase 1 Q6PIU2 NCEH1 Phosphatidylcholine-sterol acyltransferase P04180 LCAT Scavenger receptor class B member 1 Q8WTV0 SCARB1 Sterol O-acyltransferase 1 P35610 SOAT1 Sterol O-acyltransferase 2 O75908 SOAT2