Record Information |
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Version | 5.0 |
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Status | Predicted |
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Creation Date | 2021-09-16 03:00:47 UTC |
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Update Date | 2022-11-30 20:07:07 UTC |
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HMDB ID | HMDB0290321 |
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Secondary Accession Numbers | None |
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Metabolite Identification |
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Common Name | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)) |
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Description | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)) is a type of oxidized sphingolipid found in animal cell membranes. It usually consists of phosphorylcholine and ceramide. SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)) consists of a sphingosine backbone and a 9-oxo-octadecadienoyl 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. |
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Structure | [H][C@@](COP([O-])(=O)OCC[N+](C)(C)C)(NC(=O)CCCCCCCC(=O)\C=C\C=C/CCCCC)[C@H](O)\C=C\CC\C=C/CCCCCCC InChI=1S/C39H71N2O7P/c1-6-8-10-12-14-15-16-17-19-23-27-31-38(43)37(35-48-49(45,46)47-34-33-41(3,4)5)40-39(44)32-28-24-20-22-26-30-36(42)29-25-21-18-13-11-9-7-2/h16-18,21,25,27,29,31,37-38,43H,6-15,19-20,22-24,26,28,30,32-35H2,1-5H3,(H-,40,44,45,46)/b17-16-,21-18-,29-25+,31-27+/t37-,38+/m0/s1 |
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Synonyms | Not Available |
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Chemical Formula | C39H71N2O7P |
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Average Molecular Weight | 710.978 |
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Monoisotopic Molecular Weight | 710.499889632 |
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IUPAC Name | (2-{[(2S,3R,4E,8Z)-3-hydroxy-2-[(10E,12Z)-9-oxooctadeca-10,12-dienamido]hexadeca-4,8-dien-1-yl phosphono]oxy}ethyl)trimethylazanium |
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Traditional Name | (2-{[(2S,3R,4E,8Z)-3-hydroxy-2-[(10E,12Z)-9-oxooctadeca-10,12-dienamido]hexadeca-4,8-dien-1-yl phosphono]oxy}ethyl)trimethylazanium |
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CAS Registry Number | Not Available |
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SMILES | [H][C@@](COP([O-])(=O)OCC[N+](C)(C)C)(NC(=O)CCCCCCCC(=O)\C=C\C=C/CCCCC)[C@H](O)\C=C\CC\C=C/CCCCCCC |
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InChI Identifier | InChI=1S/C39H71N2O7P/c1-6-8-10-12-14-15-16-17-19-23-27-31-38(43)37(35-48-49(45,46)47-34-33-41(3,4)5)40-39(44)32-28-24-20-22-26-30-36(42)29-25-21-18-13-11-9-7-2/h16-18,21,25,27,29,31,37-38,43H,6-15,19-20,22-24,26,28,30,32-35H2,1-5H3,(H-,40,44,45,46)/b17-16-,21-18-,29-25+,31-27+/t37-,38+/m0/s1 |
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InChI Key | ZTNRLXMWRFOAFM-UKIREOJASA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as phosphocholines. Phosphocholines are compounds containing a [2-(trimethylazaniumyl)ethoxy]phosphonic acid or derivative. |
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Kingdom | Organic compounds |
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Super Class | Organic nitrogen compounds |
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Class | Organonitrogen compounds |
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Sub Class | Quaternary ammonium salts |
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Direct Parent | Phosphocholines |
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Alternative Parents | |
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Substituents | - Phosphocholine
- Phosphoethanolamine
- Dialkyl phosphate
- Fatty acyl
- Alkyl phosphate
- Phosphoric acid ester
- Organic phosphoric acid derivative
- N-acyl-amine
- Fatty amide
- Tetraalkylammonium salt
- Alpha,beta-unsaturated ketone
- Enone
- Acryloyl-group
- Secondary carboxylic acid amide
- Secondary alcohol
- Ketone
- Carboxamide group
- Carboxylic acid derivative
- Organic oxygen compound
- Organopnictogen compound
- Organic oxide
- Hydrocarbon derivative
- Organic salt
- Organic zwitterion
- Organooxygen compound
- Carbonyl group
- Amine
- Alcohol
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic compounds |
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External Descriptors | Not Available |
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Ontology |
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Physiological effect | |
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Disposition | |
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Process | |
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Role | |
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Physical Properties |
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State | Not Available |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #1 | CCCCC/C=C\C=C\C(=CCCCCCCC(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@@H](/C=C/CC/C=C\CCCCCCC)O[Si](C)(C)C)O[Si](C)(C)C | 5051.4 | Semi standard non polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #1 | CCCCC/C=C\C=C\C(=CCCCCCCC(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@@H](/C=C/CC/C=C\CCCCCCC)O[Si](C)(C)C)O[Si](C)(C)C | 4577.9 | Standard non polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #1 | CCCCC/C=C\C=C\C(=CCCCCCCC(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@@H](/C=C/CC/C=C\CCCCCCC)O[Si](C)(C)C)O[Si](C)(C)C | 5518.7 | Standard polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #2 | CCCCC/C=C\C=C\C(=O)CCCCCCCC(=O)N([C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@@H](/C=C/CC/C=C\CCCCCCC)O[Si](C)(C)C)[Si](C)(C)C | 4912.0 | Semi standard non polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #2 | CCCCC/C=C\C=C\C(=O)CCCCCCCC(=O)N([C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@@H](/C=C/CC/C=C\CCCCCCC)O[Si](C)(C)C)[Si](C)(C)C | 4593.1 | Standard non polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #2 | CCCCC/C=C\C=C\C(=O)CCCCCCCC(=O)N([C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@@H](/C=C/CC/C=C\CCCCCCC)O[Si](C)(C)C)[Si](C)(C)C | 5396.4 | Standard polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #3 | CCCCC/C=C\C=C\C(=CCCCCCCC(=O)N([C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@H](O)/C=C/CC/C=C\CCCCCCC)[Si](C)(C)C)O[Si](C)(C)C | 4947.4 | Semi standard non polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #3 | CCCCC/C=C\C=C\C(=CCCCCCCC(=O)N([C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@H](O)/C=C/CC/C=C\CCCCCCC)[Si](C)(C)C)O[Si](C)(C)C | 4655.8 | Standard non polar | 33892256 | SM(d16:2(4E,8Z)/18:2(10E,12Z)+=O(9)),2TMS,isomer #3 | CCCCC/C=C\C=C\C(=CCCCCCCC(=O)N([C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@H](O)/C=C/CC/C=C\CCCCCCC)[Si](C)(C)C)O[Si](C)(C)C | 5698.9 | Standard polar | 33892256 |
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