RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0013363
RefMet namePI 40:8
Alternative namePI(40:8)
Sum CompositionPI 40:8 View other entries in RefMet with this sum composition
Exact mass906.525833 (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
FormulaC49H79O13PView other entries in RefMet with this formula
Chemical/Biochemical Classification
Super ClassGlycerophospholipids
Main ClassGlycerophosphoinositols
Sub ClassPI (Phosphatidylinositols)
Distribution of PI 40:8 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 40:8
External Links
KEGG IDC01194
Structural annotation level
Annotation level4   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)
Abbrev# of StudiesRefmet name(exact structures)Systematic name
PI 40:82PI 18:4(6Z,9Z,12Z,15Z)/22:4(7Z,10Z,13Z,16Z)1-(6Z,9Z,12Z,15Z-octadecatetraenoyl)-2-(7Z,10Z,13Z,16Z-docosatetraenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 40:81-(9Z,12Z-octadecadienoyl)-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 40:81-(8Z,11Z,14Z-eicosatrienoyl)-2-(5Z,8Z,11Z,14Z,17Z-eicosapentaenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 40:81,2-di-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phospho-(1'-myo-inositol)
PI 40:81-(5Z,8Z,11Z,14Z,17Z-eicosapentaenoyl)-2-(8Z,11Z,14Z-eicosatrienoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 40:81-(7Z,10Z,13Z,16Z-docosatetraenoyl)-2-(6Z,9Z,12Z,15Z-octadecatetraenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 40:81-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-2-(9Z,12Z-octadecadienoyl)-glycero-3-phospho-(1'-myo-inositol)

Table of KEGG reactions in human pathways involving PI 40:8

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 40:8

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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