Record Information
Version1.0
Creation date2011-09-21 01:44:24 UTC
Update date2015-07-21 06:59:31 UTC
Primary IDFDB028754
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameSM(d18:0/18:0)
DescriptionSphingomyelin (d18:0/18:0) or SM(d18:0/18:0)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. 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 NumberNot Available
Structure
Thumb
Synonyms
SynonymSource
C18 SphingomyelinHMDB
N-(Octadecanoyl)-sphinganine-1-phosphocholineHMDB
SphingomyelinHMDB
Sphingomyelin (D18:0/18:0)HMDB
N-(Octadecanoyl)-1-phosphocholine-sphinganineHMDB
Sphingomyelin(D18:0/18:0)HMDB
N-(Octadecanoyl)-1-phosphocholine-dihydrosphingosineHMDB
N-(Octadecanoyl)-1-phosphocholine-D-erythro-sphinganineHMDB
N-(Octadecanoyl)-sphinganine-1-ocholineHMDB
N-(octadecanoyl)-sphinganine-1-phosphocholinehmdb
Sphingomyelin (d18:0/18:0)hmdb
Predicted Properties
PropertyValueSource
Water Solubility3.1e-05 g/LALOGPS
logP5.44ALOGPS
logP9.16ChemAxon
logS-7.4ALOGPS
pKa (Strongest Acidic)1.87ChemAxon
pKa (Strongest Basic)0.025ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area107.92 ŲChemAxon
Rotatable Bond Count39ChemAxon
Refractivity222.18 m³·mol⁻¹ChemAxon
Polarizability94.08 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC41H85N2O6P
IUPAC name(2-{[(2S,3R)-3-hydroxy-2-octadecanamidooctadecyl phosphonato]oxy}ethyl)trimethylazanium
InChI IdentifierInChI=1S/C41H85N2O6P/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/h39-40,44H,6-38H2,1-5H3,(H-,42,45,46,47)/t39-,40+/m0/s1
InChI KeyJCELSEVNSMXGKA-IOLBBIBUSA-N
Isomeric SMILESCCCCCCCCCCCCCCCCCC(=O)N[C@@H](COP([O-])(=O)OCC[N+](C)(C)C)[C@H](O)CCCCCCCCCCCCCCC
Average Molecular Weight733.0972
Monoisotopic Molecular Weight732.614524974
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 zwitterion
  • Alcohol
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Carbonyl group
  • Amine
  • Organic salt
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
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
EI-MS/GC-MS
TypeDescriptionSplash KeyView
Predicted GC-MSSM(d18:0/18:0), TMS_1_1, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSSM(d18:0/18:0), TMS_1_2, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSSM(d18:0/18:0), TBDMS_1_1, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSSM(d18:0/18:0), TBDMS_1_2, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-001r-6030190400-b4c2ebf67bd2270d22a9Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-001i-2070191000-99bc8c00c06f3a1ef708Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0019-6090022000-a691638f2890eb559cffSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0000004900-3487ec5451edeb775e7fSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0059-1051039200-dcc56efdec76291dd9e1Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0059-9182020000-3f4a4245401d08fc5fe6Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-0000011900-0da3c6ff6e67cc4dfd99Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0ai0-0000092900-67c9cd9dc0e1f20ae87fSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00di-0000091100-7e39e49790d8800bac48Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-001i-0600000900-7983d9dafb007fa90dceSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-001i-0600000900-7983d9dafb007fa90dceSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-0900000300-a15c99ce6b59e1aec7baSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0000011900-9fb101a7fb8faef1e09fSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a50-0000092900-eee822a518fa9cf3f69aSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-0000091100-f7447776d7d5898fad1dSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0000000900-d877867268040bb1f5a3Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-0000003900-9f056f6eae0fb2a47279Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000001000-9a12743542dba50f983bSpectrum
NMRNot Available
ChemSpider ID24846878
ChEMBL IDNot Available
KEGG Compound IDC00550
Pubchem Compound ID44260130
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB12087
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
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
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference