RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet ID	RM0172604
RefMet name	PI 18:4(6Z,9Z,12Z,15Z)/21:0
Systematic name	1-(6Z,9Z,12Z,15Z-octadecatetraenoyl)-2-heneicosanoyl-sn-glycero-3-phosphoinositol
Synonyms	PubChem Synonyms
Sum Composition	PI 18:25	View other entries in RefMet with this sum composition
Exact mass	900.572783 (neutral)	Calculate m/z: (Choose adduct) [M+H]+ [M+H-H2O]+ [M.]+ [M+2H]2+ [M+3H]3+ [M+4H]4+ [M+K]+ [M+2K]2+ [M+2K-H]+ [M+Na]+ [M+2Na]2+ [M+2Na-H]+ [M+Li]+ [M+2Li]2+ [M+NH4]+ [M.CH3]+ [M+Ag]+ [M+H+CH3OH]+ [M+H+CH3CN]+ [M+H+2CH3CN]+ [M+Na+CH3CN]+ [M.NaFormate+H]+ [M.NH4Formate+H]+ [M.TMSi]+ [M.tBuDMSi]+ [M+H-Hexose]+ [M+H-EtnP]+ [M+H-SerP]+ [M-H]- [M-H-H2O]- [M-CH3]- [M-2H]2- [M-3H]3- [M-4H]4- [M+Cl]- [M+OAc]- [M+Na-2H]- [M+K-2H]- [M.Formate]- [M.NaFormate-H]- [M.NH4Formate-H]- [M.F]- [M-H-Ser]- [M.HF2]- M(neutral)    View other RefMet entries with this exact (neutral) mass:   +/- 0.05 amu   +/- 0.1 amu   +/- 0.2 amu   +/- 0.5 amu
Formula	C48H85O13P	View other entries in RefMet with this formula
Molecular descriptors
Molfile	19233 (Download molfile/View MW Metabolite Database details)
InChI	InChI=1S/C48H85O13P/c1-3-5-7-9-11-13-15-17-19-20-21-23-25-27-29-31-33-35-37-42(50)60-40(39-59-62(56,57)61-48-46(54)44(52)43(51)45( 53)47(48)55)38-58-41(49)36-34-32-30-28-26-24-22-18-16-14-12-10-8-6-4-2/h6,8,12,14,18,22,26,28,40,43-48,51-55H,3-5,7,9-11,13,15-17, 19-21,23-25,27,29-39H2,1-2H3,(H,56,57)/b8-6-,14-12-,22-18-,28-26-/t40-,43-,44-,45+,46-,47-,48-/m1/s1
InChIKey	NOBMOOAIMDOAJE-CGXPBQKFSA-N	View other enantiomers/diastereomers of this metabolite in RefMet
SMILES	CCCCCCCCCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCC/C=CC/C=CC/C=CC/C=CCC)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 Class	Glycerophospholipids
Main Class	Glycerophosphoinositols
Sub Class	PI (Phosphatidylinositols)
Distribution of PI 18:4(6Z,9Z,12Z,15Z)/21:0 in NMDR studies
Species	Plot Species distribution
Sample source	Plot Sample source(tissue) distribution
Platform	Platform (MS/NMR) used for detection
Chromatography	Chromatography methods used for detection
Studies	NMDR Studies reporting PI 18:4(6Z,9Z,12Z,15Z)/21:0
External Links
Pubchem CID	52927871
LIPID MAPS	LMGP06010418
KEGG ID	C01194
Structural annotation level
Annotation level	3   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving PI 18:4(6Z,9Z,12Z,15Z)/21:0

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

Table of KEGG human pathways containing PI 18:4(6Z,9Z,12Z,15Z)/21:0

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