Record Information
Version1.0
Creation Date2016-09-30 23:13:35 UTC
Update Date2020-05-11 20:57:20 UTC
BMDB IDBMDB0004949
Secondary Accession Numbers
  • BMDB04949
Metabolite Identification
Common NameCeramide (d18:1/16:0)
DescriptionCer(d18:1/16:0), also known as N-hexadecanoyl-sphing-4-enine, is a ceramide (Cer). Ceramides are members of the class of compounds known as sphingolipids (SPs), or glycosylceramides. SPs are lipids containing a backbone of sphingoid bases (e.g. sphingosine or sphinganine) that are often covalently bound to a fatty acid derivative through N-acylation. SPs are found in cell membranes, particularly in peripheral nerve cells and the cells found in the central nervous system (including the brain and spinal cord). Sphingolipids are extremely versatile molecules that have functions controlling fundamental cellular processes such as cell division, differentiation, and cell death. Impairments associated with sphingolipid metabolism are associated with many common human diseases such as diabetes, various cancers, microbial infections, diseases of the cardiovascular and respiratory systems, Alzheimer’s disease and other neurological syndromes. The biosynthesis and catabolism of sphingolipids involves a large number of intermediate metabolites where many different enzymes are involved. Simple sphingolipids, which include the sphingoid bases and ceramides, make up the early products of the sphingolipid synthetic pathways, while complex sphingolipids may be formed by the addition of head groups to the ceramide template (Wikipedia). In humans, ceramides are phosphorylated to ceramide phosphates (CerPs) through the action of a specific ceramide kinase (CerK). Ceramide phosphates are important metabolites of ceramides as they act as a mediators of the inflammatory response. Ceramides are also one of the hydrolysis byproducts of sphingomyelins (SMs) through the action of the enzyme sphingomyelin phosphodiesterase, which has been identified in the subcellular fractions of human epidermis (PMID: 25935 ) and many other tissues. Ceramides can also be synthesized from serine and palmitate in a de novo pathway and are regarded as important cellular signals for inducing apoptosis (PMID: 14998372 ). Ceramides are key in the biosynthesis of glycosphingolipids and gangliosides. In terms of its appearance and structure, Cer(d18:1/16:0) is a colorless solid that consists of an unsaturated 18-carbon sphingoid base with an attached saturated hexadecanoyl fatty acid side chain. In most mammalian SPs, the 18-carbon sphingoid bases are predominant (PMID: 9759481 ).
Structure
Thumb
Synonyms
ValueSource
(2S,3R,4E)-2-Acylamino-1,3-octadec-4-enediolChEBI
(2S,3R,4E)-2-Acylaminooctadec-4-ene-1,3-diolChEBI
C16 CerChEBI
C16 CeramideChEBI
C16-0(Palmitoyl)ceramideChEBI
Ceramide (D18:1/16:0)ChEBI
N-(Hexadecanoyl)-sphing-4-enineChEBI
N-(Hexadecanoyl)ceramideChEBI
N-(Hexadecanoyl)sphing-4-enineChEBI
N-(Palmitoyl)ceramideChEBI
N-Hexadecanoyl-D-erythro-sphingosineChEBI
N-Hexadecanoylsphing-4-enineChEBI
N-Palmitoyl-sphingosineChEBI
N-Palmitoylsphing-4-enineChEBI
N-PalmitoylsphingosineChEBI
CerHMDB
CeramideHMDB
N-AcylsphingosineHMDB
N-[(1S,2R,3E)-2-Hydroxy-1-(hydroxymethyl)-3-heptadecenyl]-octadecanamideHMDB
C16-CeramideHMDB
NFA(C16)cerHMDB
PalmitoylceramideHMDB
C(16)-CeramideHMDB
N-Palmitoylsphingosine, (r*,s*-(e))-(+-)HMDB
C16-PalmitoylceramideHMDB
N-Palmitoylsphingosine, R-(r*,s*-(e))HMDB
PCer CPDHMDB
Ceramide-C16HMDB
(2S,3R,4E)-2-N-Palmitoyloctadecasphinga-4-eneHMDB
C16:0-CeramideHMDB
Ceramide (D18:1,C16:0)HMDB
Ceramide 16HMDB
Ceramide(D18:1/16:0)HMDB
D-Erythro-C16-ceramideHMDB
D-Erythro-N-hexadecanoylsphingenineHMDB
D-Erythro-N-palmitoylsphingosineHMDB
D-Erythro-delta4-ceramideHMDB
D-Erythro-δ4-ceramideHMDB
N-Hexadecanoyl-D-erythro-ceramideHMDB
N-HexadecanoylsphingosineHMDB
N-Palmitoyl 4-sphingenineHMDB
N-Palmitoyl ceramideHMDB
N-Palmitoyl-D-erythro-sphingosineHMDB
N-Palmitoyl-D-sphingosineHMDB
N-(Hexadecanoyl)-sphingosineMetBuilder
N-(Hexadecanoyl)-D-erythro-sphingosineMetBuilder
N-(Hexadecanoyl)-4-sphingenineMetBuilder
N-(Hexadecanoyl)-D-sphingosineMetBuilder
N-(Hexadecanoyl)-sphingenineMetBuilder
N-(Hexadecanoyl)-erythro-4-sphingenineMetBuilder
Cer(D18:1/16:0)ChEBI
Chemical FormulaC34H67NO3
Average Molecular Weight537.9007
Monoisotopic Molecular Weight537.512095015
IUPAC NameN-[(2S,3R,4E)-1,3-dihydroxyoctadec-4-en-2-yl]hexadecanamide
Traditional NameN-(palmitoyl)-ceramide
CAS Registry Number4201-58-5
SMILES
CCCCCCCCCCCCCCCC(=O)N[C@@H](CO)[C@H](O)\C=C\CCCCCCCCCCCCC
InChI Identifier
InChI=1S/C34H67NO3/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-33(37)32(31-36)35-34(38)30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h27,29,32-33,36-37H,3-26,28,30-31H2,1-2H3,(H,35,38)/b29-27+/t32-,33+/m0/s1
InChI KeyYDNKGFDKKRUKPY-TURZORIXSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as long-chain ceramides. These are ceramides bearing a long chain fatty acid.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSphingolipids
Sub ClassCeramides
Direct ParentLong-chain ceramides
Alternative Parents
Substituents
  • Long-chain ceramide
  • Fatty amide
  • N-acyl-amine
  • Fatty acyl
  • Carboxamide group
  • Secondary alcohol
  • Secondary carboxylic acid amide
  • Carboxylic acid derivative
  • Primary alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Alcohol
  • Organic nitrogen compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cell membrane
  • Cytoplasm
  • Endosome
  • Intracellular membrane
  • Membrane
  • Mitochondria
  • Myelin sheath
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityInsolubleNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP9.49ALOGPS
logP10.87ChemAxon
logS-7.1ALOGPS
pKa (Strongest Acidic)13.62ChemAxon
pKa (Strongest Basic)-1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area69.56 ŲChemAxon
Rotatable Bond Count30ChemAxon
Refractivity165.78 m³·mol⁻¹ChemAxon
Polarizability73.21 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-00y0-4371679000-4350654880fad493e81dView in MoNA
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-03di-0090020000-a4c08ce2d2d5bc07212cView in MoNA
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-03di-0090020000-6b6cc500a909ad02bd59View in MoNA
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-03di-0090020000-4a672523b98af8ff8c7cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0000090000-f294f0ced8f149249815View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01p9-0050090000-80f4b14827e42ec58feaView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03l0-0090050000-c9f32bf831226119babdView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0000090000-876883608819d763f04eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01p9-0050090000-22ff2434faf08fcef599View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03l0-0090050000-e6a7f6704ac5e854065cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0000090000-15b6716e7356e06043b6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-0010090000-e14e9c0c2e28b7a12b19View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0ue0-0040090000-a44d6a95bf21d0975da6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-0000090000-d2d11b266d3c5c7e73ffView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-0000090000-d2d11b266d3c5c7e73ffView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-004i-0000190000-6ce0a8c6d5140383d837View in MoNA
1D NMR13C NMR Spectrum (1D, 100 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 100 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 1000 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 1000 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 200 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 200 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 300 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 300 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 400 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 400 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 500 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 600 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 700 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 700 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 800 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 800 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 900 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 900 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cell membrane
  • Cytoplasm
  • Endosome
  • Intracellular membrane
  • Membrane
  • Mitochondria
  • Myelin sheath
Biospecimen Locations
  • Brain
  • Epidermis
  • Fibroblasts
  • Intestine
  • Kidney
  • Liver
  • Neuron
  • Pancreas
  • Placenta
  • Platelet
  • Skeletal Muscle
  • Spleen
  • Testis
  • Thyroid Gland
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BrainExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
EpidermisExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
FibroblastsExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
IntestineExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
KidneyExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
LiverDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
NeuronExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
PancreasExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
PlacentaExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
PlateletExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Skeletal MuscleExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
SpleenExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
TestisExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Thyroid GlandExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0004949
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB023536
KNApSAcK IDNot Available
Chemspider ID4446677
KEGG Compound IDC00195
BioCyc IDCERAMIDE
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN ID7202
PubChem Compound5283564
PDB ID16C
ChEBI ID72959
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in ceramidase activity
Specific function:
Lysosomal ceramidase that hydrolyzes sphingolipid ceramides into sphingosine and free fatty acids at acidic pH (By similarity). Ceramides, sphingosine, and its phosphorylated form sphingosine-1-phosphate are bioactive lipids that mediate cellular signaling pathways regulating several biological processes including cell proliferation, apoptosis and differentiation (By similarity). Has a higher catalytic efficiency towards C12-ceramides versus other ceramides (By similarity). Also catalyzes the reverse reaction allowing the synthesis of ceramides from fatty acids and sphingosine (By similarity). For the reverse synthetic reaction, the natural sphingosine D-erythro isomer is more efficiently utilized as a substrate compared to D-erythro-dihydrosphingosine and D-erythro-phytosphingosine, while the fatty acids with chain lengths of 12 or 14 carbons are the most efficiently used (By similarity). Has also an N-acylethanolamine hydrolase activity (By similarity). By regulating the levels of ceramides, sphingosine and sphingosine-1-phosphate in the epidermis, mediates the calcium-induced differentiation of epidermal keratinocytes (By similarity). Also indirectly regulates tumor necrosis factor/TNF-induced apoptosis (By similarity). By regulating the intracellular balance between ceramides and sphingosine, in adrenocortical cells, probably also acts as a regulator of steroidogenesis (By similarity).
Gene Name:
ASAH1
Uniprot ID:
Q17QB3
Molecular weight:
44965.0
General function:
Involved in hydrolase activity, acting on glycosyl bonds
Specific function:
Converts sphingomyelin to ceramide. Also has phospholipase C activities toward 1,2-diacylglycerolphosphocholine and 1,2-diacylglycerolphosphoglycerol.
Gene Name:
SMPD1
Uniprot ID:
Q0VD19
Molecular weight:
69392.0
General function:
Involved in cation binding
Specific function:
Glucosylceramidase that catalyzes, within the lysosomal compartment, the hydrolysis of glucosylceramide/GlcCer into free ceramide and glucose. Thereby, plays a central role in the degradation of complex lipids and the turnover of cellular membranes. Through the production of ceramides, participates to the PKC-activated salvage pathway of ceramide formation. Also plays a role in cholesterol metabolism. May either catalyze the glucosylation of cholesterol, through a transglucosylation reaction that transfers glucose from glucosylceramide to cholesterol. The short chain saturated C8:0-GlcCer and the mono-unsaturated C18:0-GlcCer being the most effective glucose donors for that transglucosylation reaction. Under specific conditions, may alternatively catalyze the reverse reaction, transferring glucose from cholesteryl-beta-D-glucoside to ceramide. Finally, may also hydrolyze cholesteryl-beta-D-glucoside to produce D-glucose and cholesterol.
Gene Name:
GBA
Uniprot ID:
Q2KHZ8
Molecular weight:
59855.0
General function:
Involved in lipid transport
Specific function:
Shelters ceramides and diacylglycerol lipids inside its START domain and mediates the intracellular trafficking of ceramides and diacylglycerol lipids in a non-vesicular manner.
Gene Name:
CERT1
Uniprot ID:
Q9GKI7
Molecular weight:
70847.0