RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0173650
RefMet namePI 18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)
Systematic name1-octadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphoinositol
SynonymsPubChem Synonyms
Sum CompositionPI 40:6 View other entries in RefMet with this sum composition
Exact mass910.557133 (neutral)
Calculate m/z:   
View other RefMet entries with this exact (neutral) mass:   +/- 0.05 amu   +/- 0.1 amu   +/- 0.2 amu   +/- 0.5 amu
FormulaC49H83O13PView other entries in RefMet with this formula
Molecular descriptors
Molfile18827 (Download molfile/View MW Metabolite Database details)
InChIInChI=1S/C49H83O13P/c1-3-5-7-9-11-13-15-17-19-20-21-22-24-26-28-30-32-34-36-38-43(51)61-41(40-60-63(57,58)62-49-47(55)45(53)44(52)
46(54)48(49)56)39-59-42(50)37-35-33-31-29-27-25-23-18-16-14-12-10-8-6-4-2/h5,7,11,13,17,19,21-22,26,28,32,34,41,44-49,52-56H,3-4,6
,8-10,12,14-16,18,20,23-25,27,29-31,33,35-40H2,1-2H3,(H,57,58)/b7-5-,13-11-,19-17-,22-21-,28-26-,34-32-/t41-,44-,45-,46+,47-,48-,4
9-/m1/s1
InChIKeyDJVOKHFQPGWUPK-SWXQTFNJSA-NView other enantiomers/diastereomers of this metabolite in RefMet
SMILESCC/C=CC/C=CC/C=CC/C=CC/C=CC/C=CCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC)COP(=O)(O)O[C@@H]1C([C@@H](C(C(C1O)O)O)O)O
Run Tanimoto similarity search (with similarity coefficient >=0.6)
Chemical/Biochemical Classification
Super ClassGlycerophospholipids
Main ClassGlycerophosphoinositols
Sub ClassPI (Phosphatidylinositols)
Distribution of PI 18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z) in NMDR studies
SpeciesPlot Species distribution
Sample sourcePlot Sample source(tissue) distribution
PlatformPlatform (MS/NMR) used for detection
ChromatographyChromatography methods used for detection
StudiesNMDR Studies reporting PI 18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)
External Links
Pubchem CID52927465
LIPID MAPSLMGP06010012
KEGG IDC01194
HMDB IDHMDB0009821
Structural annotation level
Annotation level1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving PI 18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)

Rxn IDKEGG ReactionEnzyme
R01802 CDP-diacylglycerol + myo-Inositol <=> CMP + 1-Phosphatidyl-D-myo-inositolCDP-diacylglycerol:myo-inositol 3-phosphatidyltransferase
R03332 1-Phosphatidyl-D-myo-inositol + H2O <=> Inositol 1-phosphate + 1,2-Diacyl-sn-glycerol1-Phosphatidyl-D-myo-inositol inositolphosphohydrolase
R03361 ATP + 1-Phosphatidyl-D-myo-inositol <=> ADP + 1-Phosphatidyl-1D-myo-inositol 4-phosphateATP:1-Phosphatidyl-1D-myo-inositol 4-phosphotransferase
R03362 ATP + 1-Phosphatidyl-D-myo-inositol <=> ADP + 1-Phosphatidyl-1D-myo-inositol 3-phosphateATP:1-phosphatidyl-1D-myo-inositol 3-phosphotransferase
R03363 1-Phosphatidyl-1D-myo-inositol 3-phosphate + H2O <=> 1-Phosphatidyl-D-myo-inositol + Orthophosphate1-Phosphatidyl-1D-myo-inositol 3-phosphate 3-phosphohydrolase
R05916 UDP-N-acetyl-D-glucosamine + 1-Phosphatidyl-D-myo-inositol <=> UDP + G00143UDP-N-acetyl-D-glucosamine + 1-Phosphatidyl-D-myo-inositol <=> UDP + G00143
R09034 Acyl-CoA + 1-Acylglycerophosphoinositol <=> CoA + 1-Phosphatidyl-D-myo-inositolacyl-CoA:1-acyl-sn-glycero-3-phosphoinositol O-acyltransferase
R10951 ATP + 1-Phosphatidyl-D-myo-inositol <=> ADP + 1-Phosphatidyl-1D-myo-inositol 5-phosphateATP:1-phosphatidyl-1D-myo-inositol 5-phosphotransferase
R11680 1-Phosphatidyl-1D-myo-inositol 4-phosphate + H2O <=> 1-Phosphatidyl-D-myo-inositol + Orthophosphate1-Phosphatidyl-1D-myo-inositol 4-phosphate + H2O <=> 1-Phosphatidyl-D-myo-inositol + Orthophosphate

Table of KEGG human pathways containing PI 18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)

Pathway IDHuman Pathway# of reactions
hsa04070 Phosphatidylinositol signaling system 7
hsa00562 Inositol phosphate metabolism 5
hsa00564 Glycerophospholipid metabolism 2
hsa00563 Glycosylphosphatidylinositol (GPI)-anchor biosynthesis 1
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