RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0134201
RefMet nameCer 33:1;O2
Alternative nameCer(d33:1)
Sum CompositionCer 33:1;O2 View other entries in RefMet with this sum composition
Exact mass523.496444 (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
FormulaC33H65NO3View other entries in RefMet with this formula
Chemical/Biochemical Classification
Super ClassSphingolipids
Main ClassCeramides
Sub ClassCer (Ceramides)
Distribution of Cer 33:1;O2 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 Cer 33:1;O2
External Links
KEGG IDC00422
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
Cer 17:1;O2/16:060Cer 17:1;O2/16:0N-(hexadecanoyl)-4E-heptadecasphingenine
Cer 18:1;O2/15:017Cer 18:1;O2/15:0N-(pentadecanoyl)-4E-sphingenine
Cer 16:1;O2/17:05Cer 16:1;O2/17:0N-(heptadecanoyl)-hexdecasphing-4-enine
Cer 14:1;O2/19:0Cer 14:1;O2/19:0N-(nonadecanoyl)-4E-tetradecasphingenine
Cer 15:1;O2/18:0Cer 15:1;O2/18:0N-(octadecanoyl)-4E-pentadecasphingenine
Cer 19:1;O2/14:0Cer 19:1;O2/14:0N-(tetradecanoyl)-4E-nonadecasphingenine
Cer 20:1;O2/13:0Cer 20:1;O2/13:0N-(tridecanoyl)-4E-eicosasphingenine
Cer 21:1;O2/12:0Cer 21:1;O2/12:0N-(dodecanoyl)-4E-heneicosasphingenine
Cer 22:1;O2/11:0Cer 22:1;O2/11:0N-(undecanoyl)-4E-docosasphingenine

Table of KEGG reactions in human pathways involving Cer 33:1;O2

Rxn IDKEGG ReactionEnzyme
R01350 Glycerol + Fatty acid <=> TriacylglycerolGlycerol acylhydrolase
R02250 Triacylglycerol + H2O <=> 1,2-Diacyl-sn-glycerol + Fatty acidtriacylglycerol acylhydrolase
R02251 Triacylglycerol + CoA <=> 1,2-Diacyl-sn-glycerol + Acyl-CoAacyl-CoA:1,2-diacyl-sn-glycerol O-acyltransferase
R05333 Phospholipid + 1,2-Diacyl-sn-glycerol <=> Lysophospholipid + TriacylglycerolPhospholipid:1,2-diacyl-sn-glycerol O-acyltransferase

Table of KEGG human pathways containing Cer 33:1;O2

Pathway IDHuman Pathway# of reactions
hsa00561 Glycerolipid metabolism 3
hsa01100 Metabolic pathways 1
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