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Record Information
Version5.0
StatusPredicted
Creation Date2006-11-24 09:55:39 UTC
Update Date2023-07-07 22:43:02 UTC
HMDB IDHMDB0005193
Secondary Accession Numbers
  • HMDB0005194
  • HMDB0006732
  • HMDB05193
  • HMDB05194
  • HMDB06732
Metabolite Identification
Common NameCE(20:1)
DescriptionCE(20:1(11Z)) 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. Cholesteryl eicosapentaenoic acid is a cholesteryl ester. A cholesteryl ester is an ester of cholesterol. Fatty acid esters of cholesterol constitute about two-thirds of the cholesterol in the plasma. Cholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues, and transported in the blood plasma of all animals. The accumulation of cholesterol esters in the arterial intima (the innermost layer of an artery, in direct contact with the flowing blood) is a characteristic feature of atherosclerosis. Atherosclerosis is a disease affecting arterial blood vessels. It is a chronic inflammatory response in the walls of arteries, in large part to the deposition of lipoproteins (plasma proteins that carry cholesterol and triglycerides). In patients with triglyceride levels above 500 mg/dl, approximately 4 g/day of eicosapentaenoic acid reduces triglyceride levels 45% and very low-density lipoprotein cholesterol levels by more than 50%. Physical exercise and fish oil (a rich source of eicosapentaenoic acid) suppress the activity of endothelial lipase (EL) and this, in turn, enhances the plasma concentrations of HDL cholesterol. EL has been shown to have a significant role in modulating the concentrations of plasma HDL. (PMID: 17461707 , 15664301 , 15524182 , 15485592 ).
Structure
Data?1582752346
Synonyms
ValueSource
1-(11-EicosenoateHMDB
1-(11-Eicosenoic acidHMDB
1-(11-Eicosenoic acid)HMDB
1-(11-Eicosenoyl)-cholesterolHMDB
1-Eicosenoyl-cholesterolHMDB
20:1 Cholesterol esterHMDB
20:1(11Z) Cholesterol esterHMDB
CE(20:1)HMDB
CE(20:1/0:0)HMDB
CE(20:1n9/0:0)HMDB
CE(20:1W9/0:0)HMDB
Cholest-5-en-3beta-yl (11Z-eicosenoateHMDB
Cholest-5-en-3beta-yl (11Z-eicosenoate)HMDB
Cholest-5-en-3beta-yl (11Z-eicosenoic acidHMDB
Cholest-5-en-3beta-yl 11Z-eicosenoateHMDB
Cholest-5-en-3beta-yl 11Z-eicosenoic acidHMDB
Cholesterol 1-(11-eicosenoateHMDB
Cholesterol 1-(11-eicosenoate)HMDB
Cholesterol 1-(11-eicosenoic acidHMDB
Cholesterol 1-(11-eicosenoic acid)HMDB
Cholesterol 1-eicosenoateHMDB
Cholesterol 1-eicosenoic acidHMDB
Cholesterol ester(20:1)HMDB
Cholesterol ester(20:1/0:0)HMDB
Cholesterol ester(20:1n9/0:0)HMDB
Cholesterol ester(20:1W9/0:0)HMDB
CholesterylHMDB
Cholesteryl 1-(11-eicosenoateHMDB
Cholesteryl 1-(11-eicosenoate)HMDB
Cholesteryl 1-(11-eicosenoic acidHMDB
Cholesteryl 1-eicosenoateHMDB
Cholesteryl 1-eicosenoic acidHMDB
Cholesteryl eicosenoateHMDB
Cholesteryl eicosenoic acidHMDB
Cholesteryl 1-(11-eicosenoic acid)HMDB
CE(20:1(11Z))Lipid Annotator
(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 (11Z)-icos-11-enoic acidGenerator
Chemical FormulaC47H82O2
Average Molecular Weight679.1528
Monoisotopic Molecular Weight678.631481868
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 (11Z)-icos-11-enoate
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 (11Z)-icos-11-enoate
CAS Registry Number70832-37-0
SMILES
CCCCCCCC\C=C/CCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C
InChI Identifier
InChI=1S/C47H82O2/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/h14-15,28,37-38,40-44H,7-13,16-27,29-36H2,1-6H3/b15-14-/t38-,40+,41?,42?,43?,44?,46+,47-/m1/s1
InChI KeyOWTYWMJVQZQWFH-JQTKPCACSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as cholesteryl esters. Cholesteryl esters are compounds containing an esterified cholestane moiety.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassSteroid esters
Direct ParentCholesteryl esters
Alternative Parents
Substituents
  • Cholesteryl ester
  • Cholesterol
  • Cholestane-skeleton
  • Delta-5-steroid
  • Carboxylic acid ester
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effect
Disposition
Biological locationSource
ProcessNot Available
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility6.4e-06 g/LALOGPS
logP10.91ALOGPS
logP15.45ChemAxon
logS-8ALOGPS
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.3 ŲChemAxon
Rotatable Bond Count24ChemAxon
Refractivity213.73 m³·mol⁻¹ChemAxon
Polarizability91.74 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+270.74431661259
DarkChem[M-H]-263.14531661259
DeepCCS[M+H]+274.01630932474
DeepCCS[M-H]-272.19130932474
DeepCCS[M-2H]-305.43330932474
DeepCCS[M+Na]+279.62230932474
AllCCS[M+H]+265.232859911
AllCCS[M+H-H2O]+264.932859911
AllCCS[M+NH4]+265.332859911
AllCCS[M+Na]+265.432859911
AllCCS[M-H]-220.632859911
AllCCS[M+Na-2H]-227.432859911
AllCCS[M+HCOO]-234.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
CE(20:1(11Z))CCCCCCCC\C=C/CCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C4341.3Standard polar33892256
CE(20:1(11Z))CCCCCCCC\C=C/CCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C5150.3Standard non polar33892256
CE(20:1(11Z))CCCCCCCC\C=C/CCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C4850.2Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - CE(20:1) GC-MS (Non-derivatized) - 70eV, Positivesplash10-0403-5257129000-b27d0d3ddc2bd4031a4d2017-09-01Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 10V, Positive-QTOFsplash10-004i-1054019000-c86c5443367a3151b1f12017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 20V, Positive-QTOFsplash10-0673-5389013000-4a0e6076c22d98c91b0a2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 40V, Positive-QTOFsplash10-0adi-6369202000-282b0a0d8581cea9a8772017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 10V, Negative-QTOFsplash10-004i-0015009000-14b6a690b098c936dd8e2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 20V, Negative-QTOFsplash10-000i-0029002000-c950bb4930782f98d9ff2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 40V, Negative-QTOFsplash10-014u-2019000000-4ba46fdafe3b6c32ab282017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 10V, Positive-QTOFsplash10-016r-4039026000-4e6fd31abff92ead7d1f2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 20V, Positive-QTOFsplash10-0aou-9121000000-4366e1d0de621eda361c2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 40V, Positive-QTOFsplash10-052f-9210000000-1bc9e70439477ed754772021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 10V, Negative-QTOFsplash10-004i-0002009000-9654951dfa3aaeb70fe12021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 20V, Negative-QTOFsplash10-004i-0004009000-923e37b8629a0ad895332021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(20:1) 40V, Negative-QTOFsplash10-0bvu-7045449000-50b94dc60ca69babbde12021-09-25Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.053 (0-0.107) uMAdult (>18 years old)BothNormal details
BloodDetected and Quantified30 +/- 1 uMAdult (>18 years old)BothNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB023636
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDC02530
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound53477794
PDB IDNot Available
ChEBI ID88795
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. McKenney JM, Sica D: Role of prescription omega-3 fatty acids in the treatment of hypertriglyceridemia. Pharmacotherapy. 2007 May;27(5):715-28. [PubMed:17461707 ]
  2. Das UN: Long-chain polyunsaturated fatty acids, endothelial lipase and atherosclerosis. Prostaglandins Leukot Essent Fatty Acids. 2005 Mar;72(3):173-9. [PubMed:15664301 ]
  3. Holub DJ, Holub BJ: Omega-3 fatty acids from fish oils and cardiovascular disease. Mol Cell Biochem. 2004 Aug;263(1-2):217-25. [PubMed:15524182 ]
  4. Mori TA, Beilin LJ: Omega-3 fatty acids and inflammation. Curr Atheroscler Rep. 2004 Nov;6(6):461-7. [PubMed:15485592 ]

Enzymes

General function:
Involved in phosphatidylcholine-sterol O-acyltransferase activity
Specific function:
Central enzyme in the extracellular metabolism of plasma lipoproteins. Synthesized mainly in the liver and secreted into plasma where it converts cholesterol and phosphatidylcholines (lecithins) to cholesteryl esters and lysophosphatidylcholines on the surface of high and low density lipoproteins (HDLs and LDLs). The cholesterol ester is then transported back to the liver. Has a preference for plasma 16:0-18:2 or 18:O-18:2 phosphatidylcholines. Also produced in the brain by primary astrocytes, and esterifies free cholesterol on nascent APOE-containing lipoproteins secreted from glia and influences cerebral spinal fluid (CSF) APOE- and APOA1 levels. Together with APOE and the cholesterol transporter ABCA1, plays a key role in the maturation of glial-derived, nascent lipoproteins. Required for remodeling high-density lipoprotein particles into their spherical forms.
Gene Name:
LCAT
Uniprot ID:
P04180
Molecular weight:
49577.545
General function:
Involved in lipid metabolic process
Specific function:
Crucial for the intracellular hydrolysis of cholesteryl esters and triglycerides that have been internalized via receptor-mediated endocytosis of lipoprotein particles. Important in mediating the effect of LDL (low density lipoprotein) uptake on suppression of hydroxymethylglutaryl-CoA reductase and activation of endogenous cellular cholesteryl ester formation.
Gene Name:
LIPA
Uniprot ID:
P38571
Molecular weight:
45418.71
General function:
Lipid transport and metabolism
Specific function:
Catalyzes fat and vitamin absorption. Acts in concert with pancreatic lipase and colipase for the complete digestion of dietary triglycerides.
Gene Name:
CEL
Uniprot ID:
P19835
Molecular weight:
79666.385
General function:
Lipid transport and metabolism
Specific function:
Involved in the detoxification of xenobiotics and in the activation of ester and amide prodrugs. Hydrolyzes aromatic and aliphatic esters, but has no catalytic activity toward amides or a fatty acyl-CoA ester. Hydrolyzes the methyl ester group of cocaine to form benzoylecgonine. Catalyzes the transesterification of cocaine to form cocaethylene. Displays fatty acid ethyl ester synthase activity, catalyzing the ethyl esterification of oleic acid to ethyloleate.
Gene Name:
CES1
Uniprot ID:
P23141
Molecular weight:
62520.62
General function:
Involved in acyl-CoA binding
Specific function:
Plays a role in lipoprotein assembly and dietary cholesterol absorption. In addition to its acyltransferase activity, it may act as a ligase. May provide cholesteryl esters for lipoprotein secretion from hepatocytes and intestinal mucosa.
Gene Name:
SOAT2
Uniprot ID:
O75908
Molecular weight:
59895.735
General function:
Involved in acyl-CoA binding
Specific function:
Catalyzes the formation of fatty acid-cholesterol esters. Plays a role in lipoprotein assembly and dietary cholesterol absorption. In addition to its acyltransferase activity, it may act as a ligase.
Gene Name:
SOAT1
Uniprot ID:
P35610
Molecular weight:
58130.665
General function:
Involved in cell adhesion
Specific function:
Receptor for different ligands such as phospholipids, cholesterol ester, lipoproteins, phosphatidylserine and apoptotic cells. Probable receptor for HDL, located in particular region of the plasma membrane, called caveolae. Facilitates the flux of free and esterified cholesterol between the cell surface and extracellular donors and acceptors, such as HDL and to a lesser extent, apoB-containing lipoproteins and modified lipoproteins. Probably involved in the phagocytosis of apoptotic cells, via its phosphatidylserine binding activity. Receptor for hepatitis C virus glycoprotein E2. Binding between SCARB1 and E2 was found to be independent of the genotype of the viral isolate. Plays an important role in the uptake of HDL cholesteryl ester
Gene Name:
SCARB1
Uniprot ID:
Q8WTV0
Molecular weight:
60877.4
General function:
Involved in hydrolase activity
Specific function:
Hydrolyzes 2-acetyl monoalkylglycerol ether, the penultimate precursor of the pathway for de novo synthesis of platelet-activating factor. May be responsible for cholesterol ester hydrolysis in macrophages, thereby contributing to the development of atherosclerosis. Also involved in organ detoxification by hydrolyzing exogenous organophosphorus compounds. May contribute to cancer pathogenesis by promoting tumor cell migration
Gene Name:
NCEH1
Uniprot ID:
Q6PIU2
Molecular weight:
45807.4