Record Information |
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Version | 5.0 |
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Status | Predicted |
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Creation Date | 2007-09-05 15:07:45 UTC |
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Update Date | 2023-07-07 22:43:02 UTC |
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HMDB ID | HMDB0006727 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | CE(22:0) |
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Description | CE(22:0) 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. |
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Structure | CCCCCCCCCCCCCCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C InChI=1S/C49H88O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-29-47(50)51-42-34-36-48(5)41(38-42)30-31-43-45-33-32-44(40(4)28-26-27-39(2)3)49(45,6)37-35-46(43)48/h30,39-40,42-46H,7-29,31-38H2,1-6H3/t40-,42+,43?,44?,45?,46?,48+,49-/m1/s1 |
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Synonyms | Value | Source |
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1-Tetradecanoyl-2-octadecanoyl-sn-glycero-3-phosphocholine | ChEBI | GPCho(14:0/18:0) | ChEBI | Phosphatidylcholine(14:0/18:0) | ChEBI | 1-Myristoyl-2-stearoylphosphatidylcholine | HMDB | 1m-2S-PC | HMDB | GPCho(32:0) | HMDB | Lecithin | HMDB | Phosphatidylcholine(32:0) | HMDB | PC(32:0) | HMDB | 1-Myristoyl-2-stearoyl-sn-glycero-3-phosphocholine | HMDB | 1-behenoyl-cholesterol | Lipid Annotator, HMDB | cholesteryl 1-behenoic acid | Lipid Annotator, HMDB | cholesteryl 1-docosanoate | Lipid Annotator, HMDB | CE(22:0/0:0) | Lipid Annotator, HMDB | CE(22:0) | Lipid Annotator | cholesterol 1-behenoate | Lipid Annotator, HMDB | cholesteryl 1-behenoate | Lipid Annotator, HMDB | cholesterol 1-docosanoate | Lipid Annotator, HMDB | cholesterol 1-docosanoic acid | Lipid Annotator, HMDB | 22:0 cholesterol ester | Lipid Annotator, HMDB | Cholesterol Ester(22:0/0:0) | Lipid Annotator, HMDB | cholesterol 1-behenoic acid | Lipid Annotator, HMDB | Cholesterol Ester(22:0) | Lipid Annotator, HMDB | 1-docosanoyl-cholesterol | Lipid Annotator, HMDB | cholesteryl 1-docosanoic acid | Lipid Annotator, HMDB | 3beta-Hydroxy-5-cholestene 3-docosanoate | HMDB | 3beta-Hydroxy-5-cholestene 3-docosanoic acid | HMDB | 5-Cholesten-3beta-ol 3-docosanoate | HMDB | 5-Cholesten-3beta-ol 3-docosanoic acid | HMDB | Cholest-5-en-3beta-yl docosanoate | HMDB | Cholest-5-en-3beta-yl docosanoic acid | HMDB | Cholesteryl behenate | HMDB | Cholesteryl behenic acid | HMDB | Cholesteryl docosanoate | HMDB | Cholesteryl docosanoic acid | HMDB | (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 docosanoic acid | Generator |
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Chemical Formula | C49H88O2 |
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Average Molecular Weight | 709.2218 |
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Monoisotopic Molecular Weight | 708.67843206 |
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IUPAC Name | (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 docosanoate |
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Traditional Name | (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 docosanoate |
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CAS Registry Number | 61510-09-6 |
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SMILES | CCCCCCCCCCCCCCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C |
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InChI Identifier | InChI=1S/C49H88O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-29-47(50)51-42-34-36-48(5)41(38-42)30-31-43-45-33-32-44(40(4)28-26-27-39(2)3)49(45,6)37-35-46(43)48/h30,39-40,42-46H,7-29,31-38H2,1-6H3/t40-,42+,43?,44?,45?,46?,48+,49-/m1/s1 |
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InChI Key | WBOQXYUYHINMOC-KNEWWSHNSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as phosphatidylcholines. These are glycerophosphocholines in which the two free -OH are attached to one fatty acid each through an ester linkage. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Glycerophospholipids |
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Sub Class | Glycerophosphocholines |
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Direct Parent | Phosphatidylcholines |
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Alternative Parents | |
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Substituents | - Diacylglycero-3-phosphocholine
- Phosphocholine
- Fatty acid ester
- Dialkyl phosphate
- Dicarboxylic acid or derivatives
- Organic phosphoric acid derivative
- Phosphoric acid ester
- Alkyl phosphate
- Fatty acyl
- Quaternary ammonium salt
- Tetraalkylammonium salt
- Carboxylic acid ester
- Carboxylic acid derivative
- Organic oxygen compound
- Organic nitrogen compound
- Carbonyl group
- Organooxygen compound
- Organonitrogen compound
- Organic oxide
- Organopnictogen compound
- Amine
- Organic salt
- Hydrocarbon derivative
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | |
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Disposition | |
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Process | |
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Role | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesUnderivatized |
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