Record Information
Version1.0
Creation date2011-09-21 00:16:06 UTC
Update date2015-10-09 22:29:35 UTC
Primary IDFDB022570
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameSM(d18:1/18:0)
DescriptionSphingomyelin (d18:1/18:0) or SM(d18:1/18:0) is a type of sphingolipid found in animal cell membranes, especially in the membranous myelin sheath which surrounds some nerve cell axons. It usually consists of phosphorylcholine and ceramide. SM(18:1/18:0) consists of oleic acid attached to the C1 position and stearic acid attached to the C2 position. In humans, sphingomyelin is the only membrane phospholipid not derived from glycerol. Like all sphingolipids, SPH has a ceramide core (sphingosine bonded to a fatty acid via an amide linkage). In addition it contains one polar head group, which is either phosphocholine or phosphoethanolamine. The plasma membrane of cells is highly enriched in sphingomyelin and is considered largely to be found in the exoplasmic leaflet of the cell membrane. However, there is some evidence that there may also be a sphingomyelin pool in the inner leaflet of the membrane. Moreover, neutral sphingomyelinase-2 - an enzyme that breaks down sphingomyelin into ceramide has been found to localise exclusively to the inner leaflet further suggesting that there may be sphingomyelin present there. Sphingomyelin can accumulate in a rare hereditary disease called Niemann-Pick Disease, types A and B. Niemann-Pick disease is a genetically-inherited disease caused by a deficiency in the enzyme Sphingomyelinase, which causes the accumulation of Sphingomyelin in spleen, liver, lungs, bone marrow, and the brain, causing irreversible neurological damage. SMs play a role in signal transduction. Sphingomyelins are synthesized by the transfer of phosphorylcholine from phosphatidylcholine to a ceramide in a reaction catalyzed by sphingomyelin synthase. [HMDB]
CAS Number85187-10-6
Structure
Thumb
Synonyms
SynonymSource
N-(Octadecanoyl)-sphing-4-enine-1-phosphocholineHMDB
N-Acyl-4-sphingenyl-1-O-phosphorylcholineHMDB
N-Acyl-D-sphingosine-1-phosphocholineHMDB
SphingomyelinHMDB
Sphingomyelin (D18:1/18:0)HMDB
N-(Octadecanoyl)-1-phosphocholine-sphing-4-enineHMDB
Sphingomyelin(D18:1/18:0)HMDB
N-(Octadecanoyl)-1-phosphocholine-sphingosineHMDB
N-(Octadecanoyl)-1-phosphocholine-D-erythro-sphingosineHMDB
N-(Octadecanoyl)-1-phosphocholine-4-sphingenineHMDB
N-(Octadecanoyl)-1-phosphocholine-D-sphingosineHMDB
N-(Octadecanoyl)-1-phosphocholine-sphingenineHMDB
N-(Octadecanoyl)-1-phosphocholine-erythro-4-sphingenineHMDB
N-(Octadecanoyl)-sphing-4-enine-1-ocholineHMDB
N-(octadecanoyl)-sphing-4-enine-1-phosphocholinehmdb
N-Acyl-4-sphingenyl-1-O-orylcholineHMDB
N-Acyl-D-sphingosine-1-ocholineHMDB
Sphingomyelin (d18:1/18:0)hmdb
Predicted Properties
PropertyValueSource
Water Solubility4.3e-05 g/LALOGPS
logP5.35ALOGPS
logP7.87ChemAxon
logS-7.2ALOGPS
pKa (Strongest Acidic)1.87ChemAxon
pKa (Strongest Basic)-1.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area105.09 ŲChemAxon
Rotatable Bond Count38ChemAxon
Refractivity224.27 m³·mol⁻¹ChemAxon
Polarizability93.66 ųChemAxon
Number of Rings0ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC41H84N2O6P
IUPAC name{[(2S,3R,4E)-3-hydroxy-2-octadecanamidooctadec-4-en-1-yl]oxy}[2-(trimethylazaniumyl)ethoxy]phosphinic acid
InChI IdentifierInChI=1S/C41H83N2O6P/c1-6-8-10-12-14-16-18-20-21-23-25-27-29-31-33-35-41(45)42-39(38-49-50(46,47)48-37-36-43(3,4)5)40(44)34-32-30-28-26-24-22-19-17-15-13-11-9-7-2/h32,34,39-40,44H,6-31,33,35-38H2,1-5H3,(H-,42,45,46,47)/p+1/b34-32+/t39-,40+/m0/s1
InChI KeyLKQLRGMMMAHREN-YJFXYUILSA-O
Isomeric SMILESCCCCCCCCCCCCCCCCCC(=O)N[C@@]([H])(COP(O)(=O)OCC[N+](C)(C)C)[C@]([H])(O)\C=C\CCCCCCCCCCCCC
Average Molecular Weight732.0892
Monoisotopic Molecular Weight731.606699942
Classification
Description belongs to the class of organic compounds known as phosphosphingolipids. These are sphingolipids with a structure based on a sphingoid base that is attached to a phosphate head group. They differ from phosphonospingolipids which have a phosphonate head group.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSphingolipids
Sub ClassPhosphosphingolipids
Direct ParentPhosphosphingolipids
Alternative Parents
Substituents
  • Sphingoid-1-phosphate or derivatives
  • Phosphocholine
  • Phosphoethanolamine
  • Dialkyl phosphate
  • Fatty amide
  • N-acyl-amine
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Fatty acyl
  • Alkyl phosphate
  • Tetraalkylammonium salt
  • Quaternary ammonium salt
  • Secondary carboxylic acid amide
  • Secondary alcohol
  • Carboxamide group
  • Carboxylic acid derivative
  • Organic salt
  • Amine
  • Alcohol
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic cation
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
Physiological effect

Organoleptic effect:

Disposition

Route of exposure:

Source:

Biological location:

Process

Naturally occurring process:

Role

Industrial application:

Biological role:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateSolid
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-001i-0200000900-e97fc8b60f9884266fe8View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-001i-0900000000-6e6f0a8e64b4641256a7View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-001i-0900000000-57c2d6df417e54414b35View in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableView in JSpectraViewer
ChemSpider ID4446701
ChEMBL IDNot Available
KEGG Compound IDC00550
Pubchem Compound ID5283588
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB01348
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDSphingomyelin
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
Enzymes
NameGene NameUniProt ID
Phosphatidylcholine:ceramide cholinephosphotransferase 2SGMS2Q8NHU3
Phosphatidylcholine:ceramide cholinephosphotransferase 1SGMS1Q86VZ5
Ganglioside GM2 activatorGM2AP17900
N-acetylglucosaminyl-phosphatidylinositol de-N-acetylasePIGLQ9Y2B2
Sphingomyelin phosphodiesteraseSMPD1P17405
Phosphatidylinositol N-acetylglucosaminyltransferase subunit QPIGQQ9BRB3
Phosphatidylinositol N-acetylglucosaminyltransferase subunit APIGAP37287
Phosphatidylinositol N-acetylglucosaminyltransferase subunit HPIGHQ14442
Phosphatidylinositol N-acetylglucosaminyltransferase subunit PPIGPP57054
Phosphatidylinositol N-acetylglucosaminyltransferase subunit CPIGCQ92535
T-cell surface glycoprotein CD1e, membrane-associatedCD1EP15812
Epididymal secretory protein E1NPC2P61916
Antigen-presenting glycoprotein CD1dCD1DP15813
GPI mannosyltransferase 1PIGMQ9H3S5
Phosphatidylinositol-glycan biosynthesis class W proteinPIGWQ7Z7B1
Phosphatidylinositol-glycan biosynthesis class X proteinPIGXQ8TBF5
GPI mannosyltransferase 4PIGZQ86VD9
Lactosylceramide 1,3-N-acetyl-beta-D-glucosaminyltransferaseB3GNT5Q9BYG0
Beta-1,3-galactosyltransferase 5B3GALT5Q9Y2C3
GPI mannosyltransferase 3PIGBQ92521
Phosphatidylinositol-glycan biosynthesis class F proteinPIGFQ07326
GPI ethanolamine phosphate transferase 2PIGGQ5H8A4
GPI ethanolamine phosphate transferase 1PIGNO95427
GPI ethanolamine phosphate transferase 3PIGOQ8TEQ8
GPI transamidase component PIG-SPIGSQ96S52
GPI transamidase component PIG-TPIGTQ969N2
Phosphatidylinositol glycan anchor biosynthesis class U proteinPIGUQ9H490
GPI mannosyltransferase 2PIGVQ9NUD9
Phosphatidylinositol N-acetylglucosaminyltransferase subunit YPIGYQ3MUY2
Non-lysosomal glucosylceramidaseGBA2Q9HCG7
GPI-anchor transamidasePIGKQ92643
Proactivator polypeptidePSAPP07602
Pathways
NameSMPDB LinkKEGG Link
Sphingolipid MetabolismSMP00034 map00500
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSshow
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference