RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0038111
RefMet nameCer 56:0;O2
Alternative nameCer(d56:0)
Sum CompositionCer 56:0;O2 View other entries in RefMet with this sum composition
Exact mass847.872044 (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
FormulaC56H113NO3View other entries in RefMet with this formula
Chemical/Biochemical Classification
Super ClassSphingolipids
Main ClassCeramides
Sub ClassDHCer (Dihydroceramides)
Distribution of Cer 56:0;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 56:0;O2
External Links
KEGG IDC12126
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 17:0;O2/39:0Cer 17:0;O2/39:0N-(nonatriacontanoyl)-heptadecasphinganine
Cer 18:0;O2/38:0Cer 18:0;O2/38:0N-(octatriacontanoyl)-sphinganine
Cer 19:0;O2/37:0Cer 19:0;O2/37:0N-(heptatriacontanoyl)-nonadecasphinganine
Cer 20:0;O2/36:0Cer 20:0;O2/36:0N-(hexatriacontanoyl)-eicosasphinganine
Cer 21:0;O2/35:0Cer 21:0;O2/35:0N-(pentatriacontanoyl)-heneicosasphinganine
Cer 22:0;O2/34:0Cer 22:0;O2/34:0N-(tetratriacontanoyl)-docosasphinganine

Table of KEGG reactions in human pathways involving Cer 56:0;O2

Rxn IDKEGG ReactionEnzyme
R06517 Acyl-CoA + Sphinganine <=> CoA + Dihydroceramideacyl-CoA:sphingosine N-acyltransferase
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)
R06526 Dihydroceramide + 2 Ferrocytochrome b5 + Oxygen + 2 H+ <=> Phytoceramide + 2 Ferricytochrome b5 + H2Odihydroceramide,ferrocytochrome b5:oxygen oxidoreductase (C4-hydroxylating)

Table of KEGG human pathways containing Cer 56:0;O2

Pathway IDHuman Pathway# of reactions
hsa00600 Sphingolipid metabolism 4
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