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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2013-05-06 17:37:58 UTC
Update Date2021-09-16 15:45:17 UTC
HMDB IDHMDB0060058
Secondary Accession Numbers
  • HMDB60058
Metabolite Identification
Common NameCE(16:2)
DescriptionCE(16:2) 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.
Structure
Data?1563866011
Synonyms
ValueSource
(1S,2R,5S,10S,11S,15R)-2,15-Dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl (9E,12E)-hexadeca-9,12-dienoic acidGenerator
Chemical FormulaC43H72O2
Average Molecular Weight621.0306
Monoisotopic Molecular Weight620.553231548
IUPAC Name(1S,2R,5S,10S,11S,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl (9E,12E)-hexadeca-9,12-dienoate
Traditional Name(1S,2R,5S,10S,11S,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl (9E,12E)-hexadeca-9,12-dienoate
CAS Registry NumberNot Available
SMILES
[H][C@@]12CCC([C@H](C)CCCC(C)C)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC=C2C[C@H](CC[C@]12C)OC(=O)CCCCCCC\C=C\C\C=C\CCC
InChI Identifier
InChI=1S/C43H72O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-23-41(44)45-36-28-30-42(5)35(32-36)24-25-37-39-27-26-38(34(4)22-20-21-33(2)3)43(39,6)31-29-40(37)42/h9-10,12-13,24,33-34,36-40H,7-8,11,14-23,25-32H2,1-6H3/b10-9+,13-12+/t34-,36+,37+,38?,39+,40+,42+,43-/m1/s1
InChI KeyOYOAMRKUJRRRSM-FYALRKDYSA-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
ProcessNot Available
Role
Physical Properties
StateNot Available
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 Solubility5.8e-06 g/LALOGPS
logP10.28ALOGPS
logP13.31ChemAxon
logS-8ALOGPS
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.3 ŲChemAxon
Rotatable Bond Count19ChemAxon
Refractivity196.44 m³·mol⁻¹ChemAxon
Polarizability81.7 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
DeepCCS[M-2H]-289.17630932474
DeepCCS[M+Na]+263.22530932474
AllCCS[M+H]+258.432859911
AllCCS[M+H-H2O]+257.932859911
AllCCS[M+NH4]+258.732859911
AllCCS[M+Na]+258.832859911
AllCCS[M-H]-215.332859911
AllCCS[M+Na-2H]-221.032859911
AllCCS[M+HCOO]-227.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
CE(16:2)[H][C@@]12CCC([C@H](C)CCCC(C)C)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC=C2C[C@H](CC[C@]12C)OC(=O)CCCCCCC\C=C\C\C=C\CCC4276.7Standard polar33892256
CE(16:2)[H][C@@]12CCC([C@H](C)CCCC(C)C)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC=C2C[C@H](CC[C@]12C)OC(=O)CCCCCCC\C=C\C\C=C\CCC4743.6Standard non polar33892256
CE(16:2)[H][C@@]12CCC([C@H](C)CCCC(C)C)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC=C2C[C@H](CC[C@]12C)OC(=O)CCCCCCC\C=C\C\C=C\CCC4556.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - CE(16:2) GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a6u-2229073000-54e814731e2e594796e52017-09-20Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 10V, Positive-QTOFsplash10-00dr-2256049000-af6f31fd2f9a51cca1a02017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 20V, Positive-QTOFsplash10-05n0-6239030000-e98eb7e6b396db560e2c2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 40V, Positive-QTOFsplash10-0a4i-5619020000-a65f0169b466dc1516482017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 10V, Negative-QTOFsplash10-014i-0024009000-7220145f221f4b19dd982017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 20V, Negative-QTOFsplash10-00kr-0049003000-bcbc6b95cfdf144be1592017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 40V, Negative-QTOFsplash10-015l-2029000000-eac6d5d6ff820a1ca6c72017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 10V, Positive-QTOFsplash10-00xr-9003055000-35b158755c8dfb252ead2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 20V, Positive-QTOFsplash10-0a4i-9001120000-24f1f754351167b6547f2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 40V, Positive-QTOFsplash10-0aru-9011000000-b5e074010987cfccbd002021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 10V, Negative-QTOFsplash10-014i-0000009000-4587805ac88cec8d3e512021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 20V, Negative-QTOFsplash10-014i-0093007000-4af8f13e0cbfebfa643b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - CE(16:2) 40V, Negative-QTOFsplash10-0aou-6920001000-8adb08a8f0da7ed7c14b2021-10-12Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified31 +/- 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 IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound124202105
PDB IDNot Available
ChEBI ID89566
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. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  3. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  4. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  5. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.