RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0043608
RefMet nameGalCer 20:0;O2/25:0
Alternative nameGalCer(d20:0/25:0)
Systematic nameN-(pentacosanoyl)-1-beta-galactosyl-eicosasphinganine
SynonymsPubChem Synonyms
Sum CompositionGalCer 45:0;O2 View other entries in RefMet with this sum composition
Exact mass855.752719 (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
FormulaC51H101NO8View other entries in RefMet with this formula
Molecular descriptors
Molfile88877 (Download molfile/View MW Metabolite Database details)
InChIInChI=1S/C51H101NO8/c1-3-5-7-9-11-13-15-17-19-20-21-22-23-24-25-27-29-31-33-35-37-39-41-47(55)52-44(43-59-51-50(58)49(57)48(56)46(
42-53)60-51)45(54)40-38-36-34-32-30-28-26-18-16-14-12-10-8-6-4-2/h44-46,48-51,53-54,56-58H,3-43H2,1-2H3,(H,52,55)/t44-,45+,46+,48-
,49-,50+,51+/m0/s1
InChIKeyIFPDLDLTCVKKLR-WQTDGDDDSA-NView other enantiomers/diastereomers of this metabolite in RefMet
SMILESCCCCCCCCCCCCCCCCCCCCCCCCC(=O)N[C@@H](CO[C@H]1C(C([C@H]([C@@H](CO)O1)O)O)O)[C@@H](CCCCCCCCCCCCCCCCC)O
Run Tanimoto similarity search (with similarity coefficient >=0.6)
Chemical/Biochemical Classification
Super ClassSphingolipids
Main ClassGlycosphingolipids
Sub ClassHexCer (Hexosyl ceramides)
Distribution of GalCer 20:0;O2/25:0 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 GalCer 20:0;O2/25:0
External Links
Pubchem CID145715930
LIPID MAPSLMSP05019FNF
KEGG IDC02686
Structural annotation level
Annotation level1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving GalCer 20:0;O2/25:0

Rxn IDKEGG ReactionEnzyme
R01500 UDP-alpha-D-galactose + N-Acylsphingosine <=> UDP + GalactosylceramideUDP-alpha-D-galactose:N-acylsphingosine D-galactosyltransferase
R03617 Galactosylceramide + H2O <=> D-Galactose + N-AcylsphingosineD-galactosyl-N-acylsphingosine galactohydrolase
R04017 3'-Phosphoadenylyl sulfate + Galactosylceramide <=> Adenosine 3',5'-bisphosphate + Sulfatide3'-Phosphoadenylylsulfate:galactosylceramide 3'-sulfotransferase
R04018 Galactosylceramide + N-Acetylneuraminate <=> GM4 + H2OAcylneuraminyl hydrolase
R04019 Digalactosylceramide + H2O <=> Galactosylceramide + D-GalactoseDigalactosylceramide galactohydrolase
R04856 Sulfatide + H2O <=> Galactosylceramide + SulfateSulfatide sulfohydrolase

Table of KEGG human pathways containing GalCer 20:0;O2/25:0

Pathway IDHuman Pathway# of reactions
hsa00600 Sphingolipid metabolism 6
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