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Record Information
Version1.0
Creation Date2016-09-30 23:49:31 UTC
Update Date2020-06-04 20:44:42 UTC
BMDB IDBMDB0008039
Secondary Accession Numbers
  • BMDB08039
Metabolite Identification
Common NamePC(18:0/18:2(9Z,12Z))
DescriptionPC(18:0/18:2(9Z,12Z)), also known as PC(18:0/18:2) or 18:0-18:2-PC, belongs to the class of organic compounds known as phosphatidylcholines. These are glycerophosphocholines in which the two free -OH are attached to one fatty acid each through an ester linkage. Thus, PC(18:0/18:2(9Z,12Z)) is considered to be a glycerophosphocholine lipid molecule. PC(18:0/18:2(9Z,12Z)) is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. PC(18:0/18:2(9Z,12Z)) exists in all eukaryotes, ranging from yeast to humans. PC(18:0/18:2(9Z,12Z)) participates in a number of enzymatic reactions, within cattle. In particular, S-Adenosylhomocysteine and PC(18:0/18:2(9Z,12Z)) can be biosynthesized from S-adenosylmethionine and pe-nme2(18:0/18:2(9Z,12Z)); which is mediated by the enzyme phosphatidylethanolamine N-methyltransferase. Furthermore, Cytidine monophosphate and PC(18:0/18:2(9Z,12Z)) can be biosynthesized from CDP-choline and DG(18:0/18:2(9Z,12Z)/0:0); which is catalyzed by the enzyme choline/ethanolaminephosphotransferase. Finally, PC(18:0/18:2(9Z,12Z)) and L-serine can be converted into choline and PS(18:0/18:2(9Z,12Z)) through its interaction with the enzyme phosphatidylserine synthase. In cattle, PC(18:0/18:2(9Z,12Z)) is involved in a couple of metabolic pathways, which include phosphatidylcholine biosynthesis PC(18:0/18:2(9Z,12Z)) pathway and phosphatidylethanolamine biosynthesis pe(18:0/18:2(9Z,12Z)) pathway.
Structure
Thumb
Synonyms
Chemical FormulaC44H84NO8P
Average Molecular Weight786.1134
Monoisotopic Molecular Weight785.593455181
IUPAC Nametrimethyl(2-{[(2R)-2-[(9Z,12Z)-octadeca-9,12-dienoyloxy]-3-(octadecanoyloxy)propyl phosphonato]oxy}ethyl)azanium
Traditional Namelecithin
CAS Registry Number27098-24-4
SMILES
CCCCCCCCCCCCCCCCCC(=O)OC[C@]([H])(COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC
InChI Identifier
InChI=1S/C44H84NO8P/c1-6-8-10-12-14-16-18-20-22-24-26-28-30-32-34-36-43(46)50-40-42(41-52-54(48,49)51-39-38-45(3,4)5)53-44(47)37-35-33-31-29-27-25-23-21-19-17-15-13-11-9-7-2/h15,17,21,23,42H,6-14,16,18-20,22,24-41H2,1-5H3/b17-15-,23-21-/t42-/m1/s1
InChI KeyFORFDCPQKJHEBF-VPUSDGANSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as phosphatidylcholines. These are glycerophosphocholines in which the two free -OH are attached to one fatty acid each through an ester linkage.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassGlycerophospholipids
Sub ClassGlycerophosphocholines
Direct ParentPhosphatidylcholines
Alternative Parents
Substituents
  • Diacylglycero-3-phosphocholine
  • Phosphocholine
  • Fatty acid ester
  • Dialkyl phosphate
  • Dicarboxylic acid or derivatives
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Alkyl phosphate
  • Fatty acyl
  • Quaternary ammonium salt
  • Tetraalkylammonium salt
  • Carboxylic acid ester
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxide
  • Organopnictogen compound
  • Amine
  • Organic salt
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
  • Exogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cell membrane
  • Intracellular membrane
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP5.8ALOGPS
logP9.17ChemAxon
logS-7.6ALOGPS
pKa (Strongest Acidic)1.86ChemAxon
pKa (Strongest Basic)-6.7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area111.19 ŲChemAxon
Rotatable Bond Count42ChemAxon
Refractivity236.5 m³·mol⁻¹ChemAxon
Polarizability96.05 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0000000900-36f689a3cf8b031c9ce5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0019-0600000900-4df68b8e85813f4b5ad8View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0f89-1900041300-c296264e85d13fe25ffeView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-0000000900-64c382f846ba04194d31View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-0000000900-6c06686879d9f7790e62View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a59-0200498400-bfcef54bcce75991df2aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-0000000090-53a8e01f33b2af13f226View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-0000000190-64f46bdfe255d6a5b5e4View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-002b-0900369110-8282d7071a7afc84c25dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0000000900-23df8d3c4971511f3b91View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-0090020800-f45908c59a59b3451739View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001i-2090100000-2201cb02c8a98610c1b9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0000000900-e54f4b7d729e27672b37View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0019-0600000900-3a2440aaca7e87ec13a5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0ff0-1900041300-d3ccf7461dac2d683004View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-0000000090-683d2aaf9f12a9d08614View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00di-0030000090-ceb91fadb205f9c1b737View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00ji-0090000040-f6fcdf71c4ae55cc490bView in MoNA
Biological Properties
Cellular Locations
  • Cell membrane
  • Intracellular membrane
  • Membrane
Biospecimen Locations
  • All Tissues
  • Milk
  • Placenta
  • Ruminal Fluid
Pathways
Normal Concentrations
Abnormal Concentrations
Not Available
HMDB IDHMDB0008039
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID4945645
KEGG Compound IDNot Available
BioCyc IDCPD-8279
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound6441487
PDB IDNot Available
ChEBI ID84822
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. A. Foroutan et al. (2019). A. Foroutan et al. The Chemical Composition of Commercial Cow's Milk (in preparation). Journal of Agricultural and Food Chemistry.

Enzymes

General function:
Not Available
Specific function:
Catalyzes a base-exchange reaction in which the polar head group of phosphatidylethanolamine (PE) or phosphatidylcholine (PC) is replaced by L-serine. In membranes, PTDSS1 catalyzes mainly the conversion of phosphatidylcholine. Also converts, in vitro and to a lesser extent, phosphatidylethanolamine (By similarity).
Gene Name:
PTDSS1
Uniprot ID:
Q2KHY9
Molecular weight:
55416.0
Reactions
PC(18:0/18:2(9Z,12Z)) + L-Serine → Choline + PS(18:0/18:2(9Z,12Z))details