RefMet Compound Details

MW structure30655 (View MW Metabolite Database details)
RefMet nameCer 18:0;O2/20:0
Alternative nameCer(d18:0/20:0)
Systematic nameN-(eicosanoyl)-sphinganine
Sum CompositionCer 38:0;O2 View other entries in RefMet with this sum composition
Exact mass595.590344 (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
FormulaC38H77NO3View other entries in RefMet with this formula
InChIKeyZWAUSWHRQBSECP-PQQNNWGCSA-NView other enantiomers/diastereomers of this metabolite in RefMet
Super ClassSphingolipids
Main ClassCeramides
Sub ClassDHCer (Dihydroceramides)
Pubchem CID5283574
Annotation level1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)
Human quantitationView measurements in targeted assays on human samples

Table of KEGG reactions in human pathways involving Cer 18:0;O2/20:0

Rxn IDKEGG ReactionEnzyme
R06517 Acyl-CoA + Sphinganine <=> CoA + Dihydroceramideacyl-CoA:sphingosine N-acyltransferase
R06526 Dihydroceramide + 2 Ferrocytochrome b5 + Oxygen + 2 H+ <=> Phytoceramide + 2 Ferricytochrome b5 + H2Odihydroceramide,ferrocytochrome b5:oxygen oxidoreductase (C4-hydroxylating)
R06518 Dihydroceramide + H2O <=> Fatty acid + SphinganineN-acylsphingosine amidohydrolase
R06519 Dihydroceramide + 2 Ferrocytochrome b5 + Oxygen + 2 H+ <=> N-Acylsphingosine + 2 Ferricytochrome b5 + 2 H2Odihydroceramide,ferrocytochrome b5:oxygen oxidoreductase (4,5-dehydrogenating)

Table of KEGG human pathways containing Cer 18:0;O2/20:0

Pathway IDHuman Pathway# of reactions
hsa00600 Sphingolipid metabolism 4