Record Information
Creation date2011-09-21 01:39:56 UTC
Update date2015-07-21 06:59:26 UTC
Primary IDFDB028449
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameGanglioside GD1a (d18:0/18:0)
DescriptionGanglioside GD1a (d18:0/18:0) is a ganglioside. Ganglioside is a compound composed of a glycosphingolipid (ceramide and oligosaccharide) with one or more sialic acids (AKA n-acetylneuraminic acid, NANA) linked on the sugar chain. The 60+ known gangliosides differ mainly in the position and number of NANA residues. It is a component of the cell plasma membrane that modulates cell signal transduction events. It appears that they concentrate in lipid rafts. They have recently been found to be highly important in immunology. Natural and semisynthetic gangliosides are considered possible therapeutics for neurodegenerative disorders.[1] Gangliosides are more complex glycosphingolipids in which oligosaccharide chains containing N-acetylneuraminic acid (NeuNAc) are attached to a ceramide. NeuNAc, an acetylated derivative of the carbohydrate sialic acid, makes the head groups of Gangliosides anionic. NB: the M in GM2 stands for monosialo, i.e., one NeuNAc residue. GM2 is the second monosialo ganglioside characterized, thus the subscript 2. Their structural diversity results from variation in the composition and sequence of the sugar residues. In all Gangliosides, the ceramide is linked through its C-1 to a beta-glucosyl residue, which, in turn, is bound to a beta-galactosyl residue. [Wikipedia] Particularly, Ganglioside GD1a (d18:0/18:0) is a GD1a ganglioside, 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 GD3 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. [HMDB]
CAS NumberNot Available
Predicted Properties
Water Solubility0.46 g/LALOGPS
pKa (Strongest Acidic)2.54ChemAxon
pKa (Strongest Basic)-3.7ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count39ChemAxon
Hydrogen Donor Count24ChemAxon
Polar Surface Area674.1 ŲChemAxon
Rotatable Bond Count61ChemAxon
Refractivity437.14 m³·mol⁻¹ChemAxon
Polarizability198.84 ųChemAxon
Number of Rings6ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC85H151N3O39
IUPAC name(2S,4S,5R)-2-{[(2R,3R,4S,5S,6R)-2-{[(2S,3R,4R,5R,6R)-2-{[(2R,3S,4R,5R,6S)-4-{[(2S,4S,5R)-2-carboxy-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxan-2-yl]oxy}-6-{[(2R,3S,4R,5R,6R)-4,5-dihydroxy-6-{[(2S,3R)-3-hydroxy-2-octadecanamidooctadecyl]oxy}-2-(hydroxymethyl)oxan-3-yl]oxy}-5-hydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}-5-hydroxy-6-(hydroxymethyl)-3-(2-oxopropyl)oxan-4-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid
InChI IdentifierInChI=1S/C85H151N3O39/c1-6-8-10-12-14-16-18-20-21-23-25-27-29-31-33-35-60(103)88-50(51(98)34-32-30-28-26-24-22-19-17-15-13-11-9-7-2)45-116-79-68(109)67(108)72(58(43-93)119-79)122-81-70(111)77(127-85(83(114)115)38-53(100)62(87-48(5)97)75(125-85)64(105)55(102)40-90)73(59(44-94)120-81)123-78-49(36-46(3)95)71(65(106)56(41-91)117-78)121-80-69(110)76(66(107)57(42-92)118-80)126-84(82(112)113)37-52(99)61(86-47(4)96)74(124-84)63(104)54(101)39-89/h49-59,61-81,89-94,98-102,104-111H,6-45H2,1-5H3,(H,86,96)(H,87,97)(H,88,103)(H,112,113)(H,114,115)/t49-,50+,51-,52+,53+,54-,55-,56-,57-,58-,59-,61-,62-,63-,64-,65+,66+,67-,68-,69-,70-,71-,72-,73+,74?,75?,76+,77-,78+,79-,80+,81+,84+,85+/m1/s1
Isomeric SMILESCCCCCCCCCCCCCCCCCC(=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]4O[C@H](CO)[C@H](O)[C@H](O[C@@]5(C[C@H](O)[C@@H](NC(C)=O)C(O5)[C@H](O)[C@H](O)CO)C(O)=O)[C@H]4O)[C@H]3CC(C)=O)[C@H](O[C@@]3(C[C@H](O)[C@@H](NC(C)=O)C(O3)[C@H](O)[C@H](O)CO)C(O)=O)[C@H]2O)[C@H](O)[C@H]1O)[C@H](O)CCCCCCCCCCCCCCC
Average Molecular Weight1839.1051
Monoisotopic Molecular Weight1837.992472105
Description Belongs to the class of organic compounds known as glycosphingolipids. These are sphingolipids containing a saccharide moiety glycosidically attached to the sphingoid base. Although saccharide moieties are mostly O-glycosidically linked to the ceramide moiety, other sphingolipids with glycosidic bonds of other types (e.G. S-,C-, or N-type) has been reported.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
Sub ClassGlycosphingolipids
Direct ParentGlycosphingolipids
Alternative Parents
  • Glycosphingolipid
  • Oligosaccharide
  • N-acylneuraminic acid
  • N-acylneuraminic acid or derivatives
  • Neuraminic acid
  • Fatty acyl glycoside
  • C-glucuronide
  • Alkyl glycoside
  • O-glycosyl compound
  • C-glycosyl compound
  • Glycosyl compound
  • Ketal
  • Fatty acyl
  • Fatty amide
  • Dicarboxylic acid or derivatives
  • Pyran
  • N-acyl-amine
  • Oxane
  • Acetamide
  • Ketone
  • Secondary alcohol
  • Secondary carboxylic acid amide
  • Carboxamide group
  • Acetal
  • Carboxylic acid derivative
  • Carboxylic acid
  • Oxacycle
  • Organoheterocyclic compound
  • Polyol
  • Hydrocarbon derivative
  • Alcohol
  • Organic oxide
  • Carbonyl group
  • Organic nitrogen compound
  • Organic oxygen compound
  • Primary alcohol
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External DescriptorsNot Available
Physiological effect

Organoleptic effect:


Route of exposure:


Biological location:


Naturally occurring process:


Industrial application:

Biological role:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
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
EI-MS/GC-MSNot Available
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-7090001260-940692fccce81b7a4c08Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00m0-4090101740-5102d1d3b066be13b0abSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0f8l-7261372950-e0f13e6320d30ea39b85Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0fy9-1104061190-b2a5caeaf278f24bddd1Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-05g0-3682049580-fdaabc608e9d6623820fSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-05a9-1180759440-7dcc02bcb4e631cf3808Spectrum
NMRNot Available
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound ID53481056
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
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 IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
NameGene NameUniProt ID
Ganglioside GM2 activatorGM2AP17900
N-acetylglucosaminyl-phosphatidylinositol de-N-acetylasePIGLQ9Y2B2
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
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
MSDSNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference