Identification
YMDB IDYMDB14164
NamePE(18:0/18:0)
SpeciesSaccharomyces cerevisiae
StrainBrewer's yeast
DescriptionPE(18:0/18:0) is a phosphatidylethanolamine. It is a glycerophospholipid in which a phosphorylethanolamine moiety occupies a glycerol substitution site. As is the case with diacylglycerols, glycerophosphoethanolamines can have many different combinations of fatty acids of varying lengths and saturation attached to the C-1 and C-2 positions. PE(18:0/18:0), in particular, consists of two octadecanoyl chains at positions C-1 and C-2. While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. PEs are neutral zwitterions at physiological pH. They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18:2, 20:4 and 22:6) on carbon 2. PE synthesis can occur via two pathways. The first requires that ethanolamine be activated by phosphorylation and then coupled to CDP. The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. The second involves the decarboxylation of PS.
Structure
Thumb
Synonyms
  • 2-Ammonioethyl (2R)-2,3-bis(stearoyloxy)propyl phosphate
  • 2-Ammonioethyl (2R)-2,3-bis(stearoyloxy)propyl phosphoric acid
  • 1,2-Distearoylphosphatidylethanolamine, (R)-isomer
  • DC18PE
  • Distearoyl-L-phosphatidylethanolamine
  • 1,2-Dioctadecanoyl-sn-glycero-3-phosphoethanolamine
  • 1,2-Distearoylphosphatidylethanolamine, (S)-isomer
  • 1,2-Distearoylphosphatidylethanolamine
  • 1,2-Distearoylphosphatidylethanolamine, (+-)-isomer
  • DSPE
  • GPEtn(18:0/18:0)
  • PE(36:0)
  • Phophatidylethanolamine(36:0)
  • Phophatidylethanolamine(18:0/18:0)
  • GPEtn(36:0)
  • 1,2-Dioctadecanoyl-rac-glycero-3-phosphoethanolamine
  • 1,2-Distearoyl-rac-glycero-3-phosphoethanolamine
  • PE(18:0/18:0)
CAS numberNot Available
WeightAverage: 748.08
Monoisotopic: 747.577805602
InChI KeyLVNGJLRDBYCPGB-LDLOPFEMSA-N
InChIInChI=1S/C41H82NO8P/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-40(43)47-37-39(38-49-51(45,46)48-36-35-42)50-41(44)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h39H,3-38,42H2,1-2H3,(H,45,46)/t39-/m1/s1
IUPAC Name(2-aminoethoxy)[(2R)-2,3-bis(octadecanoyloxy)propoxy]phosphinic acid
Traditional IUPAC NameL-β,gamm
Chemical FormulaC41H82NO8P
SMILES[H][C@@](COC(=O)CCCCCCCCCCCCCCCCC)(COP(O)(=O)OCCN)OC(=O)CCCCCCCCCCCCCCCCC
Chemical Taxonomy
Description belongs to the class of organic compounds known as phosphatidylethanolamines. These are glycerophosphoetahnolamines in which two fatty acids are bonded to the glycerol moiety through ester linkages.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassGlycerophospholipids
Sub ClassGlycerophosphoethanolamines
Direct ParentPhosphatidylethanolamines
Alternative Parents
Substituents
  • Diacylglycero-3-phosphoethanolamine
  • Phosphoethanolamine
  • Fatty acid ester
  • Dialkyl phosphate
  • Dicarboxylic acid or derivatives
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Alkyl phosphate
  • Fatty acyl
  • Amino acid or derivatives
  • Carboxylic acid ester
  • Carboxylic acid derivative
  • Organopnictogen compound
  • Organic oxygen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Amine
  • Primary aliphatic amine
  • Organic nitrogen compound
  • Primary amine
  • Carbonyl group
  • Organic oxide
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
StateSolid
Charge0
Melting pointNot Available
Experimental Properties
PropertyValueReference
Water SolubilityNot AvailablePhysProp
LogPNot AvailablePhysProp
Predicted Properties
PropertyValueSource
Water Solubility5.4e-05 g/LALOGPS
logP8.91ALOGPS
logP12.23ChemAxon
logS-7.1ALOGPS
pKa (Strongest Acidic)1.87ChemAxon
pKa (Strongest Basic)10ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area134.38 ŲChemAxon
Rotatable Bond Count43ChemAxon
Refractivity209.41 m³·mol⁻¹ChemAxon
Polarizability93.58 ųChemAxon
Number of Rings0ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations
  • Endoplasmic reticulum
  • Mitochondria
Organoleptic PropertiesNot Available
SMPDB Pathways
Lysolipid incorporation into ER PC(18:0/18:0)PW002787 ThumbThumb?image type=greyscaleThumb?image type=simple
Lysolipid incorporation into Mitochondria PC(18:0/18:0)PW002795 ThumbThumb?image type=greyscaleThumb?image type=simple
Phosphatidylcholine biosynthesis PC(18:0/18:0)PW002960 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG PathwaysNot Available
SMPDB Reactions
PE(18:0/18:0) + S-Adenosyl-L-methioninePE-NMe(18:0/18:0) + hydron + S-Adenosylhomocysteine
KEGG ReactionsNot Available
Concentrations
Intracellular ConcentrationsNot Available
Extracellular ConcentrationsNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableJSpectraViewer
LC-MS/MSLC-MS/MS Spectrum - IT 40V, negativesplash10-000t-0050400900-6cd50eaec4c5bd9cc4e1JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - IT 30V, positivesplash10-0a4j-0000009600-48255e2ef051be7e84ddJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - n/a 52V, positivesplash10-0a4i-0000009000-6eb6cd259aab68421309JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - 30V, Negativesplash10-001i-0090000000-2b7039a920928ec43b6bJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - 30V, Negativesplash10-001i-0090000000-d1c88edcedefe16702cbJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-001i-0090000000-ad7ef028ba66af27d4c3JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-001i-0090000000-562c4cef385ea8ac8ca6JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0010000900-60329d5a7c12551bbc42JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0010000900-60329d5a7c12551bbc42JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001j-0390300600-067b245407347d117669JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-0000001900-4a7b6d9013d36f909f90JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4j-0001309700-eeada937f3ad0f7968a8JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-0001309300-f72f58cbd9cb16b1f4d2JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-0000001900-50a418c4f44c815f6289JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00fr-0000001900-34619ad7f9118f8f3038JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-004i-0100101900-6718aff73f7bb076a558JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-0000001900-bbbbfd5d071fd445575fJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4j-0001309700-96819fbf9850a4df1ffeJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-0001309300-60566be72def6d31ad0dJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0010000900-6bd6d72f410de62ad700JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0010000900-6bd6d72f410de62ad700JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001j-0390300600-96208b51ba43ac55e684JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
1D NMR13C NMR SpectrumNot AvailableJSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
References
References:
  • Rattray JB, Schibeci A, Kidby DK. (1975). "Lipids of yeasts." Bacteriol Rev. 1975 Sep;39(3):197-231.240350
Synthesis Reference:Not Available
External Links:
ResourceLink
CHEBI ID39934
HMDB IDHMDB0008991
Pubchem Compound ID447078
Kegg IDNot Available
ChemSpider IDNot Available
FOODB IDFDB026181
Wikipedia IDNot Available
BioCyc IDNot Available

Enzymes

General function:
Involved in phosphatidylethanolamine N-methyltransferas
Specific function:
S-adenosyl-L-methionine + phosphatidylethanolamine = S-adenosyl-L-homocysteine + phosphatidyl-N-methylethanolamine
Gene Name:
PEM1
Uniprot ID:
P05374
Molecular weight:
101203.0
Reactions
S-adenosyl-L-methionine + phosphatidylethanolamine → S-adenosyl-L-homocysteine + phosphatidyl-N-methylethanolamine.