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Record Information
Version5.0
StatusPredicted
Creation Date2021-09-16 03:08:17 UTC
Update Date2022-11-30 20:07:07 UTC
HMDB IDHMDB0290338
Secondary Accession NumbersNone
Metabolite Identification
Common NameSM(d16:2(4E,8Z)/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17))
DescriptionSM(d16:2(4E,8Z)/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)) is a type of oxidized sphingolipid found in animal cell membranes. It usually consists of phosphorylcholine and ceramide. SM(d16:2(4E,8Z)/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)) consists of a sphingosine backbone and a Protectin DX chain. In humans, sphingomyelin is the only membrane phospholipid not derived from glycerol. Like all sphingolipids, SM 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 localize 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.
Structure
Thumb
SynonymsNot Available
Chemical FormulaC43H73N2O8P
Average Molecular Weight777.037
Monoisotopic Molecular Weight776.510454317
IUPAC Name(2-{[(2S,3R,4E,8Z)-2-[(4Z,7Z,10R,11E,13Z,15E,17S,19Z)-10,17-dihydroxydocosa-4,7,11,13,15,19-hexaenamido]-3-hydroxyhexadeca-4,8-dien-1-yl phosphono]oxy}ethyl)trimethylazanium
Traditional Name(2-{[(2S,3R,4E,8Z)-2-[(4Z,7Z,10R,11E,13Z,15E,17S,19Z)-10,17-dihydroxydocosa-4,7,11,13,15,19-hexaenamido]-3-hydroxyhexadeca-4,8-dien-1-yl phosphono]oxy}ethyl)trimethylazanium
CAS Registry NumberNot Available
SMILES
[H][C@@](COP([O-])(=O)OCC[N+](C)(C)C)(NC(=O)CC\C=C/C\C=C/C[C@@H](O)\C=C\C=C/C=C/[C@@H](O)C\C=C/CC)[C@H](O)\C=C\CC\C=C/CCCCCCC
InChI Identifier
InChI=1S/C43H73N2O8P/c1-6-8-10-11-12-13-14-15-16-20-28-34-42(48)41(38-53-54(50,51)52-37-36-45(3,4)5)44-43(49)35-29-21-18-17-19-25-31-40(47)33-27-23-22-26-32-39(46)30-24-9-7-2/h9,14-15,18-19,21-28,32-34,39-42,46-48H,6-8,10-13,16-17,20,29-31,35-38H2,1-5H3,(H-,44,49,50,51)/b15-14-,21-18-,23-22-,24-9-,25-19-,32-26+,33-27+,34-28+/t39-,40+,41-,42+/m0/s1
InChI KeyHLMVUUDGALMJII-NITOXMRUSA-N
Chemical Taxonomy
ClassificationNot classified
Ontology
Physiological effect
Disposition
Process
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP4.05ALOGPS
logP3.76ChemAxon
logS-6.9ALOGPS
pKa (Strongest Acidic)1.87ChemAxon
pKa (Strongest Basic)-0.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area148.38 ŲChemAxon
Rotatable Bond Count33ChemAxon
Refractivity243.19 m³·mol⁻¹ChemAxon
Polarizability89.91 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
AllCCS[M+H]+287.96432859911
AllCCS[M+H-H2O]+287.62332859911
AllCCS[M+Na]+288.3332859911
AllCCS[M+NH4]+288.25232859911
AllCCS[M-H]-274.7232859911
AllCCS[M+Na-2H]-280.09332859911
AllCCS[M+HCOO]-285.99532859911
DeepCCS[M+H]+273.02330932474
DeepCCS[M-H]-270.79930932474
DeepCCS[M-2H]-304.48830932474
DeepCCS[M+Na]+278.97230932474

Predicted Kovats Retention Indices

Not Available
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available