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Identification
YMDB IDYMDB14022
NamePE(14:0/14:0)
SpeciesSaccharomyces cerevisiae
StrainBrewer's yeast
DescriptionPE(14:0/14:0) 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(14:0/14:0), in particular, consists of two tetradecanoyl 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
  • 1,2-Dimyristoylphosphatidylethanolamine
  • DMPE
  • PE(28:0)
  • GPEtn(28:0)
  • PE(14:0/14:0)
  • GPEtn(14:0/14:0)
  • Phophatidylethanolamine(28:0)
  • 1,2-dimyristoyl-rac-glycero-3-phosphoethanolamine
  • 1,2-ditetradecanoyl-rac-glycero-3-phosphoethanolamine
  • Phophatidylethanolamine(14:0/14:0)
CAS numberNot Available
WeightAverage: 635.864
Monoisotopic: 635.452605087
InChI KeyNEZDNQCXEZDCBI-WJOKGBTCSA-N
InChIInChI=1S/C33H66NO8P/c1-3-5-7-9-11-13-15-17-19-21-23-25-32(35)39-29-31(30-41-43(37,38)40-28-27-34)42-33(36)26-24-22-20-18-16-14-12-10-8-6-4-2/h31H,3-30,34H2,1-2H3,(H,37,38)/t31-/m1/s1
IUPAC Name(2-aminoethoxy)[(2R)-2,3-bis(tetradecanoyloxy)propoxy]phosphinic acid
Traditional IUPAC Name2-aminoethoxy((2R)-2,3-bis(tetradecanoyloxy)propoxy)phosphinic acid
Chemical FormulaC33H66NO8P
SMILES[H][C@@](COC(=O)CCCCCCCCCCCCC)(COP(O)(=O)OCCN)OC(=O)CCCCCCCCCCCCC
Chemical Taxonomy
DescriptionThis compound 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 Solubility0.0002 g/LALOGPS
logP7.06ALOGPS
logP8.67ChemAxon
logS-6.5ALOGPS
pKa (Strongest Acidic)1.87ChemAxon
pKa (Strongest Basic)10ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area134.38 ŲChemAxon
Rotatable Bond Count35ChemAxon
Refractivity172.6 m³·mol⁻¹ChemAxon
Polarizability76.48 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 ERPW002532 ThumbThumb?image type=greyscaleThumb?image type=simple
Lysolipid incorporation into ER PC(14:0/14:0)PW002783 ThumbThumb?image type=greyscaleThumb?image type=simple
Lysolipid incorporation into MitochondriaPW002531 ThumbThumb?image type=greyscaleThumb?image type=simple
Lysolipid incorporation into Mitochondria PC(14:0/14:0)PW002792 ThumbThumb?image type=greyscaleThumb?image type=simple
Phosphatidylcholine biosynthesisPW002720 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG PathwaysNot Available
SMPDB Reactions
PE(14:0/0:0) PE(14:0/14:0)
PE(16:0/0:0) PE(14:0/14:0)
PE(14:0/14:0) + S-Adenosyl-L-methioninePE-NMe(14:0/14:0) + hydron + S-Adenosylhomocysteine
PE(14:0/14:0) + S-Adenosyl-L-methioninePE-NMe(16:0/16:0) + hydron + S-Adenosylhomocysteine
PE(14:0/0:0)PE(14:0/14:0)
KEGG ReactionsNot Available
Concentrations
Intracellular ConcentrationsNot Available
Extracellular ConcentrationsNot Available
Spectra
Spectra
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 IDNot Available
HMDB IDHMDB0008821
Pubchem Compound ID9852308
Kegg IDNot Available
ChemSpider IDNot Available
FOODB IDNot Available
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.