RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0134159
RefMet nameSM 44:1;O2
Alternative nameSM(d44:1)
Sum CompositionSM 44:1;O2 View other entries in RefMet with this sum composition
Exact mass842.724076 (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
FormulaC49H99N2O6PView other entries in RefMet with this formula
Chemical/Biochemical Classification
Super ClassSphingolipids
Main ClassPhosphosphingolipids
Sub ClassSM (Sphingomyelins)
Distribution of SM 44:1;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 SM 44:1;O2
External Links
ChEBI ID190240
KEGG IDC00550
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
SM 18:1;O2/26:074SM 18:1;O2/26:0N-(hexacosanoyl)-sphing-4-enine-1-phosphocholine
SM 18:0;O2/26:14SM 18:0;O2/26:1(17Z)N-(17Z-hexacosenoyl)-sphinganine-1-phosphocholine
SM 14:1;O2/30:01SM 14:1;O2/30:0N-(triacontanoyl)-4E-tetradecasphingenine-1-phosphocholine
SM 20:1;O2/24:01SM 20:1;O2/24:0N-(tetracosanoyl)-4E-eicosasphingenine-1-phosphocholine
SM 15:1;O2/29:0SM 15:1;O2/29:0N-(nonacosanoyl)-4E-pentadecasphingenine-1-phosphocholine
SM 16:1;O2/28:0SM 16:1;O2/28:0N-(octacosanoyl)-4E-hexadecasphingenine-1-phosphocholine
SM 17:1;O2/27:0SM 17:1;O2/27:0N-(heptacosanoyl)-4E-heptadecasphingenine-1-phosphocholine
SM 19:1;O2/25:0SM 19:1;O2/25:0N-(pentacosanoyl)-4E-nonadecasphingenine-1-phosphocholine
SM 20:0;O2/24:1N-(15Z-tetracosenoyl)-eicosasphinganine-1-phosphocholine
SM 21:1;O2/23:0SM 21:1;O2/23:0N-(tricosanoyl)-4E-heneicosasphingenine-1-phosphocholine
SM 22:1;O2/22:0SM 22:1;O2/22:0N-(docosanoyl)-4E-docosasphingenine-1-phosphocholine

Table of KEGG reactions in human pathways involving SM 44:1;O2

Rxn IDKEGG ReactionEnzyme
R01891 CDP-choline + N-Acylsphingosine <=> CMP + SphingomyelinCDP-choline:N-acylsphingosine cholinephosphotransferase
R02541 Sphingomyelin + H2O <=> N-Acylsphingosine + Choline phosphateSphingomyelin cholinephosphohydrolase
R08969 N-Acylsphingosine + Phosphatidylcholine <=> Sphingomyelin + 1,2-Diacyl-sn-glycerolceramide:phosphatidylcholine cholinephosphotransferase

Table of KEGG human pathways containing SM 44:1;O2

Pathway IDHuman Pathway# of reactions
hsa00600 Sphingolipid metabolism 2
hsa01100 Metabolic pathways 1
  logo