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Record Information
Version4.0
StatusExpected but not Quantified
Creation Date2017-09-08 17:16:41 UTC
Update Date2019-07-23 09:14:04 UTC
HMDB IDHMDB0112345
Secondary Accession NumbersNone
Metabolite Identification
Common NamePS(16:0/20:0)
DescriptionPS(16:0/20:0) is a phosphatidylserine. It is a glycerophospholipid in which a phosphorylserine moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidylserines can have many different combinations of fatty acids of varying lengths and saturation attached to the C-1 and C-2 positions. PS(16:0/20:0), in particular, consists of one chain of palmitic acid at the C-1 position and one chain of arachidic acid at the C-2 position. Phosphatidylserine or 1,2-diacyl-sn-glycero-3-phospho-L-serine is distributed widely among animals, plants, and microorganisms. Phosphatidylserine is an acidic (anionic) phospholipid with three ionizable groups (i.e. the phosphate moiety, the amino group and the carboxyl group). As with other acidic lipids, it exists in nature in salt form, but it has a high propensity to chelate calcium via the charged oxygen atoms of both the carboxyl and phosphate moieties, modifying the conformation of the polar head group. This interaction may be of considerable relevance to the biological function of phosphatidylserine. 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. Phosphatidylserines typically carry a net charge of -1 at physiological pH. They mostly have a 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. PS biosynthesis involves an exchange reaction of serine for ethanolamine in PE.
Structure
Data?1563873244
Synonyms
ValueSource
1-palmitoyl-2-arachidoyl-sn-glycero-3-phosphoserine SMPDB, HMDB
PS(36:0) SMPDB, HMDB
Pser(16:0/20:0) SMPDB, HMDB
Pser(36:0) SMPDB, HMDB
Phosphatidylserine(16:0/20:0) SMPDB, HMDB
Phosphatidylserine(36:0)SMPDB, HMDB
PS(16:0/20:0)SMPDB
PSer(16:0/20:0)Lipid Annotator
1-palmitoyl-2-arachidonyl-sn-glycero-3-phosphoserineLipid Annotator, HMDB
Phosphatidylserine(16:0/20:0)Lipid Annotator
PS(36:0)Lipid Annotator
1-hexadecanoyl-2-eicosanoyl-sn-glycero-3-phosphoserineLipid Annotator, HMDB
PSer(36:0)Lipid Annotator
Chemical FormulaC42H82NO10P
Average Molecular Weight792.089
Monoisotopic Molecular Weight791.567634842
IUPAC Name(2S)-2-amino-3-({[(2R)-3-(hexadecanoyloxy)-2-(icosanoyloxy)propoxy](hydroxy)phosphoryl}oxy)propanoic acid
Traditional Name(2S)-2-amino-3-{[(2R)-3-(hexadecanoyloxy)-2-(icosanoyloxy)propoxy(hydroxy)phosphoryl]oxy}propanoic acid
CAS Registry NumberNot Available
SMILES
[H][C@](N)(COP(O)(=O)OC[C@@]([H])(COC(=O)CCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCCCCCC)C(O)=O
InChI Identifier
InChI=1S/C42H82NO10P/c1-3-5-7-9-11-13-15-17-18-19-20-22-24-26-28-30-32-34-41(45)53-38(36-51-54(48,49)52-37-39(43)42(46)47)35-50-40(44)33-31-29-27-25-23-21-16-14-12-10-8-6-4-2/h38-39H,3-37,43H2,1-2H3,(H,46,47)(H,48,49)/t38-,39+/m1/s1
InChI KeyGJYVTUCBLWPUAE-RGULYWFUSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as phosphatidylserines. These are glycerophosphoserines in which two fatty acids are bonded to the glycerol moiety through ester linkages.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassGlycerophospholipids
Sub ClassGlycerophosphoserines
Direct ParentPhosphatidylserines
Alternative Parents
Substituents
  • Diacyl-glycerol-3-phosphoserine
  • Alpha-amino acid
  • Alpha-amino acid or derivatives
  • L-alpha-amino acid
  • Tricarboxylic acid or derivatives
  • Phosphoethanolamine
  • Fatty acid ester
  • Dialkyl phosphate
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Fatty acyl
  • Alkyl phosphate
  • Amino acid
  • Carboxylic acid ester
  • Amino acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic nitrogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Organic oxide
  • Carbonyl group
  • Hydrocarbon derivative
  • Primary amine
  • Organic oxygen compound
  • Amine
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effect

Organoleptic effect:

Disposition

Route of exposure:

Source:

Biological location:

Process

Naturally occurring process:

Role

Biological role:

Industrial application:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP4.96ALOGPS
logP11.27ChemAxon
logS-7.1ALOGPS
pKa (Strongest Acidic)1.47ChemAxon
pKa (Strongest Basic)9.38ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area171.68 ŲChemAxon
Rotatable Bond Count44ChemAxon
Refractivity215.24 m³·mol⁻¹ChemAxon
Polarizability96.59 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Not Available
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
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 Compound9547095
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
References
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. van Engeland M, Nieland LJ, Ramaekers FC, Schutte B, Reutelingsperger CP: Annexin V-affinity assay: a review on an apoptosis detection system based on phosphatidylserine exposure. Cytometry. 1998 Jan 1;31(1):1-9. [PubMed:9450519 ]
  3. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  4. 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 ]
  5. 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 ]
  6. 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 ]
  7. Vance JE, Tasseva G: Formation and function of phosphatidylserine and phosphatidylethanolamine in mammalian cells. Biochim Biophys Acta. 2013 Mar;1831(3):543-54. doi: 10.1016/j.bbalip.2012.08.016. Epub 2012 Aug 29. [PubMed:22960354 ]
  8. Cevc, Gregor (1993). Phospholipids Handbook. Marcel Dekker.
  9. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.
  10. Jean E. Vance (2008). Thematic Review Series: Glycerolipids. Phosphatidylserine and phosphatidylethanolamine in mammalian cells: two metabolically related aminophospholipids. The Journal of Lipid Research, 49, 1377-1387..