Record Information
Version1.0
Creation Date2016-09-30 23:49:37 UTC
Update Date2020-06-04 19:39:10 UTC
BMDB IDBMDB0008043
Secondary Accession Numbers
  • BMDB08043
Metabolite Identification
Common NamePC(18:0/20:0)
DescriptionPC(18:0/20:0), also known as pc(18:0/20:0) or pc(18:0/20:0), 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(18:0/20:0) is considered to be a glycerophosphocholine lipid molecule. PC(18:0/20:0) is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. PC(18:0/20:0) participates in a number of enzymatic reactions, within cattle. In particular, S-Adenosylhomocysteine and PC(18:0/20:0) can be biosynthesized from S-adenosylmethionine and pe-nme2(18:0/20:0) through its interaction with the enzyme phosphatidylethanolamine N-methyltransferase. Furthermore, Cytidine monophosphate and PC(18:0/20:0) can be biosynthesized from CDP-choline and DG(18:0/20:0/0:0) through its interaction with the enzyme choline/ethanolaminephosphotransferase. Finally, PC(18:0/20:0) and L-serine can be converted into choline and PS(18:0/20:0) through the action of the enzyme phosphatidylserine synthase. In cattle, PC(18:0/20:0) is involved in a couple of metabolic pathways, which include phosphatidylcholine biosynthesis PC(18:0/20:0) pathway and phosphatidylethanolamine biosynthesis pe(18:0/20:0) pathway.
Structure
Thumb
Synonyms
ValueSource
1-Stearoyl-2-arachidonyl-sn-glycero-3-phosphocholineChEBI
GPCho(18:0/20:0)ChEBI
Phosphatidylcholine(18:0/20:0)ChEBI
PC(18:0/20:0)Lipid Annotator
GPCho(38:0)Lipid Annotator, HMDB
PC(38:0)Lipid Annotator, HMDB
LecithinLipid Annotator, HMDB
1-octadecanoyl-2-eicosanoyl-sn-glycero-3-phosphocholineLipid Annotator, HMDB
Phosphatidylcholine(38:0)Lipid Annotator, HMDB
Chemical FormulaC46H92NO8P
Average Molecular Weight818.1983
Monoisotopic Molecular Weight817.656055437
IUPAC Name(2-{[(2R)-2-(icosanoyloxy)-3-(octadecanoyloxy)propyl phosphono]oxy}ethyl)trimethylazanium
Traditional Name(2-{[(2R)-2-(icosanoyloxy)-3-(octadecanoyloxy)propyl phosphono]oxy}ethyl)trimethylazanium
CAS Registry NumberNot Available
SMILES
[H][C@@](COC(=O)CCCCCCCCCCCCCCCCC)(COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCCCCCCCCCCCCCC
InChI Identifier
InChI=1S/C46H92NO8P/c1-6-8-10-12-14-16-18-20-22-23-25-27-29-31-33-35-37-39-46(49)55-44(43-54-56(50,51)53-41-40-47(3,4)5)42-52-45(48)38-36-34-32-30-28-26-24-21-19-17-15-13-11-9-7-2/h44H,6-43H2,1-5H3/t44-/m1/s1
InChI KeyZNSGCWMTNLBFEQ-USYZEHPZSA-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
logP6.14ALOGPS
logP10.78ChemAxon
logS-7.7ALOGPS
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 Count46ChemAxon
Refractivity243.47 m³·mol⁻¹ChemAxon
Polarizability103.27 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, Positivesplash10-00kr-8091041130-27f2f1f562f97629896fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0frb-3191011000-fcde4014cbe07063a760View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0019-7093004100-3aef0e97b22e4ea8cef9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0159-0092000030-1be60fecadb8b74427b9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00lr-0090000100-9c2169a2f3e4a449f200View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-02wc-4092000000-77480a1fea1c0887e17fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-0000000090-ab8d71844e7212b94b6aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-1086002390-4ebe47420a44a6412715View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-08gl-3096200000-67e61c57e56be9534b4eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-0000000090-e6f7d8db426f55091d73View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-0000000190-96494445c96bdd74b3a6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-000x-0200498220-b66b2f9eec390c47cde4View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0000000090-19973eb720afe4f7d087View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0udi-0011000090-be967a534baed0cead6dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0xsi-0099000090-d9c74f2029b41800abf7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-0000000090-58f1a7da20ee8f926b70View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-0000000190-44eaa526f0e6d96d492bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052b-0900369110-199b569573dcd62d18c7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-0000000090-365911e721a76ffee000View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0159-0600000090-022d21ba75bc81c0ceedView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-1900041120-1f74295a1fa19358009dView in MoNA
Biological Properties
Cellular Locations
  • Cell membrane
  • Intracellular membrane
  • Membrane
Biospecimen Locations
  • All Tissues
  • Blood
  • Liver
  • Longissimus Thoracis Muscle
  • Ruminal Fluid
  • Semimembranosus Muscle
  • Testis
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
All TissuesExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
BloodDetected and Quantified0.8 +/- 0.2 uMNot SpecifiedNot Specified
Normal
    • Aidin Foroutan, C...
details
LiverDetected and Quantified1.6 +/- 0.4 nmol/g of tissueNot SpecifiedNot Specified
Normal
    • Aidin Foroutan, C...
details
Longissimus Thoracis MuscleDetected and Quantified0.4 +/- 0.1 nmol/g of tissueNot SpecifiedNot Specified
Normal
    • Aidin Foroutan, C...
details
Ruminal FluidDetected and Quantified0.08 +/- 0.01 uMNot SpecifiedNot Specified
Normal
    • Aidin Foroutan, C...
details
Semimembranosus MuscleDetected and Quantified0.4 +/- 0.1 nmol/g of tissueNot SpecifiedNot Specified
Normal
    • Aidin Foroutan, C...
details
TestisDetected and Quantified0.5 +/- 0.1 nmol/g of tissueNot SpecifiedNot Specified
Normal
    • Aidin Foroutan, C...
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0008043
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB025234
KNApSAcK IDNot Available
Chemspider ID24766708
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI ID86167
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

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(18:0/20:0) + L-Serine → Choline + PS(18:0/20:0)details