Record Information
Version2.0
Creation Date2012-05-31 14:12:43 -0600
Update Date2015-06-03 15:55:02 -0600
Secondary Accession Numbers
  • ECMDB07861
Identification
Name:PA(18:0/18:2(9Z,12Z))
DescriptionPA(18:0/18:2(9Z,12Z)) is a phosphatidic acid. It is a glycerophospholipid in which a phosphate moiety occupies a glycerol substitution site. As is the case with diacylglycerols, phosphatidic acids 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. PA(18:0/18:2(9Z,12Z)), in particular, consists of one chain of stearic acid at the C-1 position and one chain of linoleic acid at the C-2 position. Phosphatidic acids are quite rare but are extremely important as intermediates in the biosynthesis of triacylglycerols and phospholipids. PAs are biologically active lipids that can stimulate a large range of responses in many different cell types. Diacylglycerols (DAGs) can be converted to PAs by DAG kinases. Phospholipase Ds (PLDs), which catalyze the conversion of glycerolphospholipids, particularly phosphatidylcholine, to PAs and the conversion of N-arachidonoyl-phosphatidylethanolamine (NAPE) to anandamide and PAs are activated by several inflammatory mediators including bradykinin, ATP and glutamate. PAs activate downstream signaling pathways such as PKCs and mitogen-activated protein kinases (MAPKs). Circumstantial evidence that PAs are converted to DAGs. (PMID: 12618218, 16185776).
Structure
Thumb
Synonyms:
  • 1-Octadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-phosphatidate
  • 1-Octadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-phosphatidic acid
  • 1-Stearoyl-2-linoleoyl-sn-glycero-3-phosphate
  • 1-Stearoyl-2-linoleoyl-sn-glycero-3-phosphoric acid
  • A 1,2-diacylglycerol-3-phosphate
  • a 1,2-Diacylglycerol-3-phosphoric acid
  • A 3-sn-phosphatidate
  • a 3-sn-Phosphatidate
  • a 3-sn-Phosphatidic acid
  • A diacyl-glycerol-3p
  • A diacyl-glycerol-p
  • A diacylglycerol-3-phosphate
  • a Diacylglycerol-3-phosphoric acid
  • A phosphatidate
  • A phosphatidic acid
  • A phosphatidylglycerol
  • An L-phosphatidate
  • An L-phosphatidic acid
  • DGP
  • Diacylglycerol phosphate
  • Diacylglycerol phosphoric acid
  • PA(18:0/18:2)
  • PA(18:0/18:2n6)
  • PA(18:0/18:2w6)
  • PA(36:2)
  • Phosphatidate(18:0/18:2)
  • Phosphatidate(18:0/18:2n6)
  • Phosphatidate(18:0/18:2w6)
  • Phosphatidate(36:2)
  • Phosphatidic acid(18:0/18:2)
  • Phosphatidic acid(18:0/18:2n6)
  • Phosphatidic acid(18:0/18:2w6)
  • Phosphatidic acid(36:2)
Chemical Formula:C39H73O8P
Weight:Average: 700.9659
Monoisotopic: 700.504305824
InChI Key:QYYWMYCDFOLKKH-DAKWMOBOSA-N
InChI:InChI=1S/C39H73O8P/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-38(40)45-35-37(36-46-48(42,43)44)47-39(41)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h12,14,18,20,37H,3-11,13,15-17,19,21-36H2,1-2H3,(H2,42,43,44)/b14-12-,20-18-/t37-/m1/s1
CAS number:Not Available
IUPAC Name:[(2R)-2-[(9Z,12Z)-octadeca-9,12-dienoyloxy]-3-(octadecanoyloxy)propoxy]phosphonic acid
Traditional IUPAC Name:(2R)-2-[(9Z,12Z)-octadeca-9,12-dienoyloxy]-3-(octadecanoyloxy)propoxyphosphonic acid
SMILES:CCCCCCCCCCCCCCCCCC(=O)OC[C@]([H])(COP(O)(=O)O)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC
Chemical Taxonomy
Description belongs to the class of organic compounds known as 1,2-diacylglycerol-3-phosphates. These are glycerol-3-phosphates in which the glycerol moiety is bonded to two aliphatic chains through ester linkages.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassGlycerophospholipids
Sub ClassGlycerophosphates
Direct Parent1,2-diacylglycerol-3-phosphates
Alternative Parents
Substituents
  • 1,2-diacylglycerol-3-phosphate
  • Fatty acid ester
  • Monoalkyl phosphate
  • Dicarboxylic acid or derivatives
  • Fatty acyl
  • Alkyl phosphate
  • Phosphoric acid ester
  • Organic phosphoric acid derivative
  • Carboxylic acid ester
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Carbonyl group
  • Organooxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
State:Solid
Charge:-2
Melting point:Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility6.8e-05 g/LALOGPS
logP9.14ALOGPS
logP12.93ChemAxon
logS-7ALOGPS
pKa (Strongest Acidic)1.32ChemAxon
pKa (Strongest Basic)-6.7ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area119.36 ŲChemAxon
Rotatable Bond Count38ChemAxon
Refractivity199.21 m³·mol⁻¹ChemAxon
Polarizability85.11 ųChemAxon
Number of Rings0ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Membrane
Reactions:
SMPDB Pathways:Not Available
KEGG Pathways:
EcoCyc Pathways:
Concentrations
Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0uxr-1171905400-69c1fb870dc2dc7f674dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014j-2393505000-7d80d3958dc3cc4c8a77View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00vl-0194233000-72a24588ee17dea63d32View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-017j-4090403000-d4941212f149135595b6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-9050000000-9db11b1be5dca535d31cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000000000-1272fe43292da7553178View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-0000000900-af2da6ae565960d02a74View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00i0-0000009900-7e41e59856bf50ddbb3cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0773-0000902300-bc749dd94af6446df65aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0000009000-55a7c1167cbe0f25b0beView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-017j-0060904000-916fe5b246329a558e98View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-003r-0090300000-8b54e6cad8c14493034cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0f89-0000009500-c84c90ec7d2e858c69f3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udi-0000007900-6386210cf4e9425daf33View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0v4i-0000907100-042e00adfff6b52cf41cView in MoNA
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
References
References:
  • Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. Pubmed: 22080510
  • Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. Pubmed: 21097882
  • Niedernberg, A., Tunaru, S., Blaukat, A., Ardati, A., Kostenis, E. (2003). "Sphingosine 1-phosphate and dioleoylphosphatidic acid are low affinity agonists for the orphan receptor GPR63." Cell Signal 15:435-446. Pubmed: 12618218
  • Park KA, Vasko MR: Lipid mediators of sensitivity in sensory neurons. Trends Pharmacol Sci. 2005 Nov;26(11):571-7. Epub 2005 Sep 26. Pubmed: 16185776
  • Yurtsever D. (2007). Fatty acid methyl ester profiling of Enterococcus and Esherichia coli for microbial source tracking. M.sc. Thesis. Villanova University: U.S.A
Synthesis Reference:Not Available
Material Safety Data Sheet (MSDS)Not Available
External Links:
ResourceLink
CHEBI ID77248
HMDB IDHMDB07861
Pubchem Compound ID24779559
Kegg IDC00416
ChemSpider ID24766515
WikipediaLecithin
BioCyc IDL-PHOSPHATIDATE
EcoCyc IDL-PHOSPHATIDATE

Enzymes

General function:
Involved in transferase activity, transferring acyl groups
Specific function:
Converts lysophosphatidic acid (LPA) into phosphatidic acid by incorporating an acyl moiety at the 2 position. This enzyme can utilize either acyl-CoA or acyl-ACP as the fatty acyl donor
Gene Name:
plsC
Uniprot ID:
P26647
Molecular weight:
27453
Reactions
Acyl-CoA + 1-acyl-sn-glycerol 3-phosphate = CoA + 1,2-diacyl-sn-glycerol 3-phosphate.
Acyl-[acyl-carrier-protein] + 1-acyl-sn-glycerol 3-phosphate = [acyl-carrier-protein] + 1,2-diacyl-sn-glycerol 3-phosphate.
General function:
Not Available
Specific function:
Not known; overproduction leads to camphor resistance and chromosome condensation
Gene Name:
crcA
Uniprot ID:
P37001
Molecular weight:
21770

Transporters

General function:
Involved in phospholipid transporter activity
Specific function:
Part of the ABC transporter complex mlaFEDB that actively prevents phospholipid accumulation at the cell surface. Probably maintains lipid asymmetry in the outer membrane by retrograde trafficking of phospholipids from the outer membrane to the inner membrane
Gene Name:
mlaB
Uniprot ID:
P64602
Molecular weight:
10680
General function:
Secondary metabolites biosynthesis, transport and catabolism
Specific function:
Part of the ABC transporter complex mlaFEDB that actively prevents phospholipid accumulation at the cell surface. Probably maintains lipid asymmetry in the outer membrane by retrograde trafficking of phospholipids from the outer membrane to the inner membrane
Gene Name:
mlaD
Uniprot ID:
P64604
Molecular weight:
19576
General function:
Secondary metabolites biosynthesis, transport and catabolism
Specific function:
Part of the ABC transporter complex mlaFEDB that actively prevents phospholipid accumulation at the cell surface. Probably maintains lipid asymmetry in the outer membrane by retrograde trafficking of phospholipids from the outer membrane to the inner membrane
Gene Name:
mlaE
Uniprot ID:
P64606
Molecular weight:
27863