RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0134632
RefMet namePS 44:2
Alternative namePS(44:2)
Sum CompositionPS 44:2 View other entries in RefMet with this sum composition
Exact mass899.661537 (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
FormulaC50H94NO10PView other entries in RefMet with this formula
Chemical/Biochemical Classification
Super ClassGlycerophospholipids
Main ClassGlycerophosphoserines
Sub ClassPS (Phosphatidylserines)
Distribution of PS 44:2 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 PS 44:2
External Links
ChEBI ID72094
KEGG IDC02737
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
PS 44:23PS 22:0/22:2(13Z,16Z)1-docosanoyl-2-(13Z,16Z-docosadienoyl)-glycero-3-phosphoserine
PS 44:21PS 22:2(13Z,16Z)/22:01-(13Z,16Z-docosadienoyl)-2-docosanoyl-glycero-3-phosphoserine
PS 44:21,2-di-(11Z-docosenoyl)-sn-glycero-3-phosphoserine

Table of KEGG reactions in human pathways involving PS 44:2

Rxn IDKEGG ReactionEnzyme
R02055 Phosphatidylserine <=> Phosphatidylethanolamine + CO2Phsophatidyl-L-serine carboxy-lyase
R04034 Phosphatidylserine + H2O <=> 2-Acyl-sn-glycero-3-phosphoserine + Fatty acid3-sn-phosphatidyl-L-serine sn-1 acylhydrolase
R07376 Phosphatidylethanolamine + L-Serine <=> Phosphatidylserine + EthanolamineL-1-phosphatidylethanolamine:L-serine phosphatidyltransferase
R07377 Phosphatidylcholine + L-Serine <=> Phosphatidylserine + CholinePhosphatidylcholine + L-Serine <=> Phosphatidylserine + Choline
R09035 Acyl-CoA + 1-Acyl-sn-glycero-3-phosphoserine <=> CoA + Phosphatidylserineacyl-CoA:1-acyl-sn-glycero-3-phosphoserine O-acyltransferase

Table of KEGG human pathways containing PS 44:2

Pathway IDHuman Pathway# of reactions
hsa00564 Glycerophospholipid metabolism 5
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