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Record Information
StatusExpected but not Quantified
Creation Date2017-09-09 09:03:17 UTC
Update Date2019-07-23 09:22:27 UTC
Secondary Accession NumbersNone
Metabolite Identification
Common NamePG(i-14:0/a-13:0)
DescriptionPG(i-14:0/a-13:0) is a phosphatidylglycerol - a glycerophospholipid in which a phosphoglycerol moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidylglycerols can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. Fatty acids containing 16, 18 and 20 carbons are the most common. PG(i-14:0/a-13:0), in particular, consists of one chain of isotetradecanoic acid at the C-1 position and one chain of anteisotridecanoic acid at the C-2 position. Phosphatidylglycerol is present at a level of 1-2% in most animal tissues, but it can be the second most abundant phospholipid in lung surfactant (up to 11% of the total). It is well established that the concentration of phosphatidylglycerol increases during fetal development. Phosphatidylglycerol may be present in animal tissues merely as a precursor for cardiolipin synthesis.
1-isotetradecanoyl-2-anteisotridecanoyl-sn-glycero-3-phospho-(1'-glycerol)SMPDB, HMDB
1-isotetradecanoyl-2-anteisotridecanoyl-sn-glycero-3-phosphoglycerolSMPDB, HMDB
Phosphatidylglycerol(i-14:0/a-13:0)SMPDB, HMDB
Phosphatidylglycerol(27:0)SMPDB, HMDB
GPG(27:0)Lipid Annotator, HMDB
GPG(i-14:0/a-13:0)Lipid Annotator, HMDB
[(2S)-2,3-Dihydroxypropoxy][(2R)-2-[(10-methyldodecanoyl)oxy]-3-[(12-methyltridecanoyl)oxy]propoxy]phosphinateGenerator, HMDB
Chemical FormulaC33H65O10P
Average Molecular Weight652.847
Monoisotopic Molecular Weight652.431535291
IUPAC Name[(2S)-2,3-dihydroxypropoxy][(2R)-2-[(10-methyldodecanoyl)oxy]-3-[(12-methyltridecanoyl)oxy]propoxy]phosphinic acid
Traditional Name(2S)-2,3-dihydroxypropoxy((2R)-2-[(10-methyldodecanoyl)oxy]-3-[(12-methyltridecanoyl)oxy]propoxy)phosphinic acid
CAS Registry NumberNot Available
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as phosphatidylglycerols. These are glycerophosphoglycerols in which two fatty acids are bonded to the 1-glycerol moiety through ester linkages. As is the case with diacylglycerols, phosphatidylglycerols can have many different combinations of fatty acids of varying lengths and saturation attached to the C-1 and C-2 positions.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
Sub ClassGlycerophosphoglycerols
Direct ParentPhosphatidylglycerols
Alternative Parents
  • 1,2-diacylglycerophosphoglycerol
  • Fatty acid ester
  • Dialkyl phosphate
  • Dicarboxylic acid or derivatives
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Alkyl phosphate
  • Fatty acyl
  • 1,2-diol
  • Carboxylic acid ester
  • Secondary alcohol
  • Carboxylic acid derivative
  • Organic oxide
  • Organooxygen compound
  • Alcohol
  • Organic oxygen compound
  • Primary alcohol
  • Carbonyl group
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Physiological effect

Organoleptic effect:


Route of exposure:


Biological location:


Naturally occurring process:


Biological role:

Industrial application:

Physical Properties
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
pKa (Strongest Acidic)1.89ChemAxon
pKa (Strongest Basic)-3ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area148.82 ŲChemAxon
Rotatable Bond Count33ChemAxon
Refractivity172.2 m³·mol⁻¹ChemAxon
Polarizability76.29 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0f9j-5560907000-c3b2a30c592e05db089dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0571-7950511000-97a180b83189ca7f2107Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0api-9730300000-f43867eaed26f83a3308Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0r29-0290203000-06a33beb6eb0738966caSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-5491110000-515cc5c028bb5d864c9aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9120000000-57c61228f8b2e69a10b0Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Normal Concentrations
Not Available
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 Compound131823323
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Divecha N, Irvine RF: Phospholipid signaling. Cell. 1995 Jan 27;80(2):269-78. [PubMed:7834746 ]
  2. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  3. 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 ]
  4. 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 ]
  5. 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 ]
  6. Cevc, Gregor (1993). Phospholipids Handbook. Marcel Dekker.
  7. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.