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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2009-01-27 10:44:17 UTC
Update Date2022-11-30 19:04:01 UTC
HMDB IDHMDB0011593
Secondary Accession Numbers
  • HMDB0004870
  • HMDB04870
  • HMDB11593
Metabolite Identification
Common NameLacCer(d18:1/20:0)
DescriptionLacCer(d18:1/20:0) is a lactosylceramide or LacCer. Lactosylceramides are the most important and abundant of the diosylceramides. Lactosylceramides (LacCer) were originally called 'cytolipin H'. It is found in small amounts only in most animal tissues, but it has a number of significant biological functions and it is of great importance as the biosynthetic precursor of most of the neutral oligoglycosylceramides, sulfatides and gangliosides. In animal tissues, biosynthesis of lactosylceramide involves addition of the second monosaccharides unit (galactose) as its nucleotide derivative to monoglucosylceramide, catalysed by a specific beta-1,4-galactosyltransferase on the lumenal side of the Golgi apparatus. The glucosylceramide precursor must first cross from the cytosolic side of the membrane, possibly via the action of a flippase. The lactosylceramide produced can be further glycosylated or transferred to the plasma membrane. Lactosylceramide may assist in stabilizing the plasma membrane and activating receptor molecules in the special micro-domains or rafts, as with the cerebrosides. It may also have its own specialized function in the immunological system in that it is known to bind to specific bacteria. In addition, it is believed that a number of pro-inflammatory factors activate lactosylceramide synthase to generate lactosylceramide, which in turn activates "oxygen-sensitive" signalling pathways that affect such cellular processes as proliferation, adhesion, migration and angiogenesis. Dysfunctions in these pathways can affect several diseases of the cardiovascular system, cancer and inflammatory states, so lactosylceramide metabolism is a potential target for new therapeutic treatments. beta-D-Galactosyl-1,4-beta-D-glucosylceramide is the second to last step in the synthesis of N-Acylsphingosine and is converted. from Glucosylceramide via the enzyme beta-1,4-galactosyltransferase 6(EC:2.4.1.-). It can be converted to Glucosylceramide via the enzyme beta-galactosidase (EC:3.2.1.23).
Structure
Data?1592001010
Synonyms
ValueSource
LacCer(d18:1/20:0)ChEBI
N-(Eicosanoyl)-1-b-lactosyl-sphing-4-enineChEBI
1-O-(4-O-b-D-Galactopyranosyl-b-D-glucopyranosyl)-ceramideHMDB
1-O-(4-O-beta-D-Galactopyranosyl-beta-glucopyranosyl)ceramideHMDB
1-O-(4-O-beta-D-Galactopyranosyl-beta-D-glucopyranosyl)-ceramideHMDB
beta-D-Galactosyl-1,4-beta-D-glucosylceramideHMDB
beta-D-Galactosyl-1,4-beta-D-glucosramideHMDB
C20 Lactosyl ceramideHMDB
CDHHMDB
CDW17 AntigenHMDB
Cytolipin HHMDB
D-Galactosyl-1,4-beta-D-glucosylceramideHMDB
D-Galactosyl-1-beta-D-glucosylceramideHMDB
Gal-beta1->4GLC-beta1->1'cerHMDB
LacC,4-beta-D-glucosylceramideHMDB
LacCerHMDB
Lactosyl ceramide (d18:1/20:0)HMDB
Lactosyl-N-acylsphingosineHMDB
LactosylceramideHMDB
N-(Eicosanoyl)-1-beta-lactosyl-sphing-4-enineHMDB
N-(Hexadecanoyl)-1-b-lactosyl-sphing-4-enineHMDB
N-(Hexadecanoyl)-1-beta-lactosyl-sphing-4-enineHMDB
b-D-Galactosyl-(1->4)-b-D-glucosyl-(11)-N-eicosanoylsphingosineGenerator, HMDB
β-D-Galactosyl-(1->4)-β-D-glucosyl-(11)-N-eicosanoylsphingosineGenerator, HMDB
LacCer d18:1/20:0HMDB
Lactosylceramide (d18:1,C20:0)HMDB
Lactosylceramide (d18:1/20:0)HMDB
Lactosylceramide(d18:1/20:0)HMDB
Chemical FormulaC50H95NO13
Average Molecular Weight918.2882
Monoisotopic Molecular Weight917.680342131
IUPAC NameN-[(2S,3R,4E)-1-{[(2R,3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-{[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-3-hydroxyoctadec-4-en-2-yl]icosanamide
Traditional NameN-[(2S,3R,4E)-1-{[(2R,3R,4R,5S,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-{[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-3-hydroxyoctadec-4-en-2-yl]icosanamide
CAS Registry Number125650-87-5
SMILES
[H][C@@](CO[C@@H]1O[C@H](CO)[C@@H](O[C@]2([H])O[C@H](CO)[C@H](O)[C@H](O)[C@H]2O)[C@H](O)[C@H]1O)(NC(=O)CCCCCCCCCCCCCCCCCCC)[C@H](O)\C=C\CCCCCCCCCCCCC
InChI Identifier
InChI=1S/C50H95NO13/c1-3-5-7-9-11-13-15-17-18-19-20-22-24-26-28-30-32-34-42(55)51-38(39(54)33-31-29-27-25-23-21-16-14-12-10-8-6-4-2)37-61-49-47(60)45(58)48(41(36-53)63-49)64-50-46(59)44(57)43(56)40(35-52)62-50/h31,33,38-41,43-50,52-54,56-60H,3-30,32,34-37H2,1-2H3,(H,51,55)/b33-31+/t38-,39+,40+,41+,43-,44-,45+,46+,47+,48+,49+,50-/m0/s1
InChI KeyFGJIXPPBZNPEHW-CRMMDXJYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 6-aminopurines. These are purines that carry an amino group at position 6. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassImidazopyrimidines
Sub ClassPurines and purine derivatives
Direct Parent6-aminopurines
Alternative Parents
Substituents
  • 6-aminopurine
  • Aminopyrimidine
  • Pyrimidine
  • Heteroaromatic compound
  • Imidazole
  • Azole
  • Azacycle
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Primary amine
  • Organonitrogen compound
  • Amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Not AvailableNot Available
Physical Properties
StateSolid
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
Water Solubility0.0046 g/LALOGPS
logP6.64ALOGPS
logP9.1ChemAxon
logS-5.3ALOGPS
pKa (Strongest Acidic)11.92ChemAxon
pKa (Strongest Basic)-3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count13ChemAxon
Hydrogen Donor Count9ChemAxon
Polar Surface Area227.86 ŲChemAxon
Rotatable Bond Count40ChemAxon
Refractivity249.01 m³·mol⁻¹ChemAxon
Polarizability111.95 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+305.32730932474
DeepCCS[M-H]-303.60430932474
DeepCCS[M-2H]-337.64430932474
DeepCCS[M+Na]+311.65730932474
AllCCS[M+H]+309.532859911
AllCCS[M+H-H2O]+309.732859911
AllCCS[M+NH4]+309.232859911
AllCCS[M+Na]+309.232859911
AllCCS[M-H]-322.332859911
AllCCS[M+Na-2H]-327.232859911
AllCCS[M+HCOO]-332.632859911

Predicted Kovats Retention Indices

Not Available
Spectra

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 10V, Positive-QTOFsplash10-0zg0-0130032928-7752769383ae73c606b82017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 20V, Positive-QTOFsplash10-002r-0140161911-2533e445ce9facf69eb62017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 40V, Positive-QTOFsplash10-03y0-1691731841-9436dcfc457ff307f07c2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 10V, Negative-QTOFsplash10-0gi1-1532052978-5226462fdd198982b31c2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 20V, Negative-QTOFsplash10-01w1-3613162940-0d7959f58923d7720b7a2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 40V, Negative-QTOFsplash10-0h00-4901120200-e21f1f6fe4c02cbce38e2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 10V, Negative-QTOFsplash10-014i-0102000229-4248c6f33d014f47a24e2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 20V, Negative-QTOFsplash10-07vu-7593030251-0e3ef15d1857aa17328d2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 40V, Negative-QTOFsplash10-0k9f-3239030000-b162809b348dc7344a952021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 10V, Positive-QTOFsplash10-0a6r-1500090704-08ef32e5a25ba27bb30b2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 20V, Positive-QTOFsplash10-004r-3900050301-217a4cdf524f05b461522021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - LacCer(d18:1/20:0) 40V, Positive-QTOFsplash10-03dl-3910022000-d04830789a6dacb7c7d72021-09-23Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedNewborn (0-30 days old)Not Specified
Premature neonates
details
FecesDetected but not QuantifiedNot QuantifiedNewborn (0-30 days old)Not Specified
Premature neonates
details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB028306
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDC01290
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound53481000
PDB IDNot Available
ChEBI ID84761
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 References
  1. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  3. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  4. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  5. Divecha N, Irvine RF: Phospholipid signaling. Cell. 1995 Jan 27;80(2):269-78. [PubMed:7834746 ]
  6. Ghosh S, Strum JC, Bell RM: Lipid biochemistry: functions of glycerolipids and sphingolipids in cellular signaling. FASEB J. 1997 Jan;11(1):45-50. [PubMed:9034165 ]
  7. Cevc, Gregor (1993). Phospholipids Handbook. Marcel Dekker.
  8. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.

Enzymes

General function:
Involved in transferase activity, transferring glycosyl groups
Specific function:
Required for the biosynthesis of glycosphingolipids.
Gene Name:
B4GALT6
Uniprot ID:
Q9UBX8
Molecular weight:
44913.315