RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0056960
RefMet namePI 33:1
Alternative namePI(33:1)
Sum CompositionPI 33:1 View other entries in RefMet with this sum composition
Exact mass822.525833 (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
FormulaC42H79O13PView other entries in RefMet with this formula
Chemical/Biochemical Classification
Super ClassGlycerophospholipids
Main ClassGlycerophosphoinositols
Sub ClassPI (Phosphatidylinositols)
Distribution of PI 33:1 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 33:1
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 33:11PI 13:0/20:1(11Z)1-tridecanoyl-2-(11Z-eicosenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-tetradecanoyl-2-(9Z-nonadecenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-(9Z-tetradecenoyl)-2-nonadecanoyl-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-pentadecanoyl-2-(9Z-octadecenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-(9Z-pentadecenoyl)-2-octadecanoyl-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-hexadecanoyl-2-(9Z-heptadecenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-(9Z-hexadecenoyl)-2-heptadecanoyl-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-heptadecanoyl-2-(9Z-hexadecenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-(9Z-heptadecenoyl)-2-hexadecanoyl-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-octadecanoyl-2-(9Z-pentadecenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-(9Z-octadecenoyl)-2-pentadecanoyl-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-nonadecanoyl-2-(9Z-tetradecenoyl)-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-(9Z-nonadecenoyl)-2-tetradecanoyl-glycero-3-phospho-(1'-myo-inositol)
PI 33:11-(11Z-eicosenoyl)-2-tridecanoyl-glycero-3-phospho-(1'-myo-inositol)

Table of KEGG reactions in human pathways involving PI 33:1

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 33:1

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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