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Identification
YMDB IDYMDB00617
NameO-acetylcarnitinium
SpeciesSaccharomyces cerevisiae
StrainBaker's yeast
DescriptionO-Acetylcarnitinium is a conjugate base of O-acetylcarnitine. Acetylcarnitine is an acetic ester of carnitine. Acetylcarnitine facilitates the movement of acetyl-CoA from the peroxisome into the mitochondria during the beta-oxidation of fatty acids.
Structure
Thumb
Synonyms
  • O-Acetyl-L-carnitine
  • O-Acetylcarnitine
CAS numberNot Available
WeightAverage: 204.2435
Monoisotopic: 204.123583069
InChI KeyRDHQFKQIGNGIED-MRVPVSSYSA-O
InChIInChI=1S/C9H17NO4/c1-7(11)14-8(5-9(12)13)6-10(2,3)4/h8H,5-6H2,1-4H3/p+1/t8-/m1/s1
IUPAC Name[(2R)-2-(acetyloxy)-3-carboxypropyl]trimethylazanium
Traditional IUPAC NameO-acetylcarnitinium
Chemical FormulaC9H18NO4
SMILESCC(=O)O[C@H](CC(O)=O)C[N+](C)(C)C
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as acyl cholines. These are acylated derivatives of choline. Choline or 2-Hydroxy-N,N,N-trimethylethanaminium is a quaternary ammonium salt with the chemical formula (CH3)3N+(CH2)2OH.
KingdomOrganic compounds
Super ClassOrganonitrogen compounds
ClassQuaternary ammonium salts
Sub ClassCholines
Direct ParentAcyl cholines
Alternative Parents
Substituents
  • Acyl choline
  • Fatty acid
  • Dicarboxylic acid or derivatives
  • Acetate salt
  • Carboxylic acid ester
  • Carboxylic acid
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Amine
  • Organic cation
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
StateNot Available
Charge1
Melting pointNot Available
Experimental Properties
PropertyValueReference
Water SolubilityNot AvailablePhysProp
LogPNot AvailablePhysProp
Predicted Properties
PropertyValueSource
Water Solubility0.43 g/LALOGPS
logP-2.1ALOGPS
logP-4.4ChemAxon
logS-2.8ALOGPS
pKa (Strongest Acidic)4.09ChemAxon
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area63.6 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity61.8 m³·mol⁻¹ChemAxon
Polarizability21.17 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations
  • mitochondrion
  • peroxisome
  • cytoplasm
Organoleptic PropertiesNot Available
SMPDB PathwaysNot Available
KEGG PathwaysNot Available
SMPDB ReactionsNot Available
KEGG Reactions
(R)-Carnitine + Acetyl-CoAO-acetylcarnitinium + Coenzyme A
Concentrations
Intracellular ConcentrationsNot Available
Extracellular ConcentrationsNot Available
Spectra
Spectra
References
References:
  • Scheer, M., Grote, A., Chang, A., Schomburg, I., Munaretto, C., Rother, M., Sohngen, C., Stelzer, M., Thiele, J., Schomburg, D. (2011). "BRENDA, the enzyme information system in 2011." Nucleic Acids Res 39:D670-D676.21062828
  • Herrgard, M. J., Swainston, N., Dobson, P., Dunn, W. B., Arga, K. Y., Arvas, M., Bluthgen, N., Borger, S., Costenoble, R., Heinemann, M., Hucka, M., Le Novere, N., Li, P., Liebermeister, W., Mo, M. L., Oliveira, A. P., Petranovic, D., Pettifer, S., Simeonidis, E., Smallbone, K., Spasic, I., Weichart, D., Brent, R., Broomhead, D. S., Westerhoff, H. V., Kirdar, B., Penttila, M., Klipp, E., Palsson, B. O., Sauer, U., Oliver, S. G., Mendes, P., Nielsen, J., Kell, D. B. (2008). "A consensus yeast metabolic network reconstruction obtained from a community approach to systems biology." Nat Biotechnol 26:1155-1160.18846089
Synthesis Reference:Not Available
External Links:
ResourceLink
CHEBI ID15960
HMDB IDNot Available
Pubchem Compound ID439756
Kegg IDC02571
ChemSpider ID388815
FOODB IDNot Available
Wikipedia IDNot Available
BioCyc IDNot Available

Enzymes

General function:
Involved in acyltransferase activity
Specific function:
Carnitine acetylase is specific for short chain fatty acids. Carnitine acetylase seems to affect the flux through the pyruvate dehydrogenase complex. It may be involved as well in the transport of acetyl-CoA into mitochondria
Gene Name:
CAT2
Uniprot ID:
P32796
Molecular weight:
77241.20313
Reactions
Acetyl-CoA + carnitine → CoA + O-acetylcarnitine.
General function:
Involved in acyltransferase activity
Specific function:
Involved in the transfer of acetyl-CoA into mitochondria. May also be involved in the metabolism of acetate and of ethanol
Gene Name:
YAT1
Uniprot ID:
P80235
Molecular weight:
77764.79688
Reactions
Acetyl-CoA + carnitine → CoA + O-acetylcarnitine.
General function:
Involved in acyltransferase activity
Specific function:
Involved in the shutteling of acetyl-CoA in the cell
Gene Name:
YAT2
Uniprot ID:
P40017
Molecular weight:
103333.0
Reactions
Acetyl-CoA + carnitine → CoA + O-acetylcarnitine.

Transporters

General function:
Involved in binding
Specific function:
Transports carnitine, acetylcarnitine, propionylcarnitine and to a much lower extent medium- and long- chain acylcarnitines
Gene Name:
CRC1
Uniprot ID:
Q12289
Molecular weight:
34753.89844