Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2005-11-16 15:48:42 UTC |
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Update Date | 2022-11-30 19:02:45 UTC |
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HMDB ID | HMDB0004890 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Ganglioside GA2 (d18:1/16:0) |
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Description | Ganglioside GA2 (d18:1/16:0) is a glycosphingolipid (ceramide and oligosaccharide)or oligoglycosylceramide with one or more sialic acids (i.e. n-acetylneuraminic acid) linked on the sugar chain. It is a component the cell plasma membrane which modulates cell signal transduction events. Gangliosides have been found to be highly important in immunology. Ganglioside GA2 carries a net-negative charge at pH 7.0 and is acidic. Gangliosides can amount to 6% of the weight of lipids from brain, but they are found at low levels in all animal tissues. Gangliosides are glycosphingolipids. There are four types of glycosphingolipids, the cerebrosides, sulfatides, globosides and gangliosides. Gangliosides are very similar to globosides except that they also contain N-acetyl neuraminic acid (NANA) in varying amounts. The specific names for the gangliosides provide information about their structure. The letter G refers to ganglioside, and the subscripts M, D, T and Q indicate that the molecule contains mono-, di-, tri and quatra-sialic acid. The numbered subscripts 1, 2 and 3 refer to the carbohydrate sequence that is attached to the ceramide. In particular, 1 stands for GalGalNAcGalGlc-ceramide, 2 stands for GalNAcGalGlc-ceramide and 3 stands for GalGlc-ceramide. Deficiencies in lysosomal enzymes that degrade the carbohydrate portions of various gangliosides are responsible for a number of lysosomal storage diseases such as Tay-Sachs disease, Sandhoff disease, and GM1 gangliosidosis. The carbohydrate portion of the ganglioside GM1 is the site of attachment of cholera toxin, the protein secreted by Vibrio cholerae. |
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Structure | CCCCCCCCCCCCCCCC(=O)N[C@@H](CO[C@@H]1O[C@H](CO)[C@@H](O[C@@H]2O[C@H](CO)[C@H](O[C@@H]3O[C@H](CO)[C@H](O)[C@H](O)[C@H]3NC(C)=O)[C@H](O)[C@H]2O)[C@H](O)C1O)[C@H](O)\C=C\CCCCCCCCCCCCC InChI=1S/C54H100N2O18/c1-4-6-8-10-12-14-16-18-20-22-24-26-28-30-38(61)37(56-42(62)31-29-27-25-23-21-19-17-15-13-11-9-7-5-2)35-69-53-48(67)46(65)51(40(33-58)71-53)74-54-49(68)47(66)50(41(34-59)72-54)73-52-43(55-36(3)60)45(64)44(63)39(32-57)70-52/h28,30,37-41,43-54,57-59,61,63-68H,4-27,29,31-35H2,1-3H3,(H,55,60)(H,56,62)/b30-28+/t37-,38+,39+,40+,41+,43+,44-,45+,46+,47+,48?,49+,50-,51+,52-,53+,54-/m0/s1 |
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Synonyms | Value | Source |
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asialo GM2 | HMDB | Bissulfogangliotetraosylceramide | HMDB | g(a2) Ganglioside | HMDB | GA2 | HMDB | GA2 ganglioside | HMDB | GalNAc-beta1->4gal-beta1->4GLC-beta1->1'cer | HMDB | ganglio-N-Triaosylceramide | HMDB | Gangliotriosylceramide | HMDB | Glycolipid g | HMDB | N-[(2S,3R,4E)-1-{[(2R,4R,5S,6R)-5-{[(2S,3R,4R,5R,6R)-5-{[(2S,3R,4R,5R,6R)-4,5-dihydroxy-3-[(1-hydroxyethylidene)amino]-6-(hydroxymethyl)oxan-2-yl]oxy}-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-hydroxyoctadec-4-en-2-yl]hexadecanimidate | Generator, HMDB |
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Chemical Formula | C54H100N2O18 |
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Average Molecular Weight | 1065.3744 |
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Monoisotopic Molecular Weight | 1064.697114406 |
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IUPAC Name | N-[(2S,3R,4E)-1-{[(2R,4R,5S,6R)-5-{[(2S,3R,4R,5R,6R)-5-{[(2S,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-hydroxyoctadec-4-en-2-yl]hexadecanamide |
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Traditional Name | N-[(2S,3R,4E)-1-{[(2R,4R,5S,6R)-5-{[(2S,3R,4R,5R,6R)-5-{[(2S,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-hydroxyoctadec-4-en-2-yl]hexadecanamide |
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CAS Registry Number | Not Available |
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SMILES | CCCCCCCCCCCCCCCC(=O)N[C@@H](CO[C@@H]1O[C@H](CO)[C@@H](O[C@@H]2O[C@H](CO)[C@H](O[C@@H]3O[C@H](CO)[C@H](O)[C@H](O)[C@H]3NC(C)=O)[C@H](O)[C@H]2O)[C@H](O)C1O)[C@H](O)\C=C\CCCCCCCCCCCCC |
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InChI Identifier | InChI=1S/C54H100N2O18/c1-4-6-8-10-12-14-16-18-20-22-24-26-28-30-38(61)37(56-42(62)31-29-27-25-23-21-19-17-15-13-11-9-7-5-2)35-69-53-48(67)46(65)51(40(33-58)71-53)74-54-49(68)47(66)50(41(34-59)72-54)73-52-43(55-36(3)60)45(64)44(63)39(32-57)70-52/h28,30,37-41,43-54,57-59,61,63-68H,4-27,29,31-35H2,1-3H3,(H,55,60)(H,56,62)/b30-28+/t37-,38+,39+,40+,41+,43+,44-,45+,46+,47+,48?,49+,50-,51+,52-,53+,54-/m0/s1 |
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InChI Key | FYUKXZXCRJNQJV-CITTUYONSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as galnacb1-4galb1-4glc- (ganglio series). These are neutral glycosphingolipids in which the root sequence is GalNAcb1-4Galb1-4Glc. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Sphingolipids |
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Sub Class | Glycosphingolipids |
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Direct Parent | GalNAcb1-4Galb1-4Glc- (Ganglio series) |
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Alternative Parents | |
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Substituents | - Galnacb1-4galb1-4glcb-cer_backbone
- Glycosyl-n-acylsphingosine
- Oligosaccharide
- Fatty acyl glycoside
- N-acyl-alpha-hexosamine
- Alkyl glycoside
- Glycosyl compound
- O-glycosyl compound
- Fatty amide
- N-acyl-amine
- Fatty acyl
- Oxane
- Acetamide
- Secondary alcohol
- Secondary carboxylic acid amide
- Carboxamide group
- Carboxylic acid derivative
- Organoheterocyclic compound
- Acetal
- Oxacycle
- Primary alcohol
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Organonitrogen compound
- Organooxygen compound
- Carbonyl group
- Organic nitrogen compound
- Alcohol
- Aliphatic heteromonocyclic compound
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Molecular Framework | Aliphatic heteromonocyclic compounds |
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External Descriptors | Not Available |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | Not Available |
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Role | Not Available |
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Physical Properties |
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State | Solid |
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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 | 0 | 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 IndicesNot Available |
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