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Record Information
Version1.0
Creation Date2016-09-30 22:46:09 UTC
Update Date2020-05-21 16:28:29 UTC
BMDB IDBMDB0001451
Secondary Accession Numbers
  • BMDB01451
Metabolite Identification
Common NameLipoic acid
DescriptionLipoic acid, also known as RLA or a-lipoate, belongs to the class of organic compounds known as lipoic acids and derivatives. Lipoic acids and derivatives are compounds containing a lipoic acid moiety (or a derivative thereof), which consists of a pentanoic acid (or derivative) attached to the C3 carbon atom of a 1,2-dithiolane ring. Lipoic acid is a drug which is used for nutritional supplementation, also for treating dietary shortage or imbalance. Lipoic acid exists as a solid, very hydrophobic, practically insoluble (in water), and relatively neutral molecule. Lipoic acid exists in all living species, ranging from bacteria to humans. In cattle, lipoic acid is involved in the metabolic pathway called the glycine and serine metabolism pathway.
Structure
Thumb
Synonyms
ValueSource
(+)-alpha-Lipoic acidChEBI, HMDB
(R)-(+)-LipoateChEBI, KEGG
(R)-(+)-Lipoic acidChEBI, Generator
(R)-1,2-Dithiolane-3-pentanoic acidChEBI, HMDB
(R)-1,2-Dithiolane-3-valeric acidChEBI, HMDB
(R)-6,8-Thioctic acidChEBI, HMDB
alpha-Lipoic acidChEBI, HMDB
Lipoic acidChEBI, HMDB
R-(+)-Lipoic acidChEBI, KEGG
R-LAChEBI, HMDB
RLAChEBI, HMDB
Thioctic acidChEBI, HMDB
Thioctic acid D-formChEBI, HMDB
(+)-a-LipoateGenerator, HMDB
(+)-a-Lipoic acidGenerator, HMDB
(+)-alpha-LipoateGenerator, HMDB
(+)-α-lipoateGenerator, HMDB
(+)-α-lipoic acidGenerator, HMDB
(R)-LipoateGenerator
(R)-1,2-Dithiolane-3-pentanoateGenerator, HMDB
(R)-1,2-Dithiolane-3-valerateGenerator, HMDB
(R)-6,8-ThioctateGenerator, HMDB
a-LipoateGenerator, HMDB
a-Lipoic acidGenerator, HMDB
alpha-LipoateGenerator, HMDB
α-lipoateGenerator, HMDB
α-Lipoic acidGenerator, HMDB
LipoateGenerator, HMDB
R-(+)-LipoateGenerator
ThioctateGenerator, HMDB
Thioctate D-formGenerator, HMDB
Acid, alpha-lipoicMeSH, HMDB
alpha Lipoic acidMeSH, HMDB
1,2-Dithiolane-3R-pentanoic acidKEGG
1,2-Dithiolane-3R-pentanoateGenerator
(R)-Lipoic acidKEGG
(3R)-1,2-Dithiolane-3-pentanoic acidHMDB
(R)-(+)-1,2-Dithiolane-3-pentanoic acidHMDB
(R)-(+)-alpha-Lipoic acidHMDB
(R)-(+)-α-Lipoic acidHMDB
(R)-5-(1,2-Dithiolan-3-yl)pentanoicacidHMDB
(R)-alpha-Lipoic acidHMDB
(R)-α-Lipoic acidHMDB
ALAHMDB
alpha-(+)-Lipoic acidHMDB
α-(+)-Lipoic acidHMDB
1,2-Dithiolane-3-valeric acidHMDB
5-(1,2-Dithiolan-3-yl)pentanoic acidHMDB
5-(1,2-Dithiolan-3-yl)valeric acidHMDB
6,8-Thioctic acidHMDB
6-Thioctic acidHMDB
Chemical FormulaC8H14O2S2
Average Molecular Weight206.326
Monoisotopic Molecular Weight206.043521072
IUPAC NameNot Available
Traditional NameNot Available
CAS Registry Number1200-22-2
SMILESNot Available
InChI Identifier
InChI=1S/C8H14O2S2/c9-8(10)4-2-1-3-7-5-6-11-12-7/h7H,1-6H2,(H,9,10)/t7-/m1/s1
InChI KeyAGBQKNBQESQNJD-SSDOTTSWSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as lipoic acids and derivatives. Lipoic acids and derivatives are compounds containing a lipoic acid moiety (or a derivative thereof), which consists of a pentanoic acid (or derivative) attached to the C3 carbon atom of a 1,2-dithiolane ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDithiolanes
Sub ClassLipoic acids and derivatives
Direct ParentLipoic acids and derivatives
Alternative Parents
Substituents
  • Lipoic_acid_derivative
  • Medium-chain fatty acid
  • Heterocyclic fatty acid
  • Thia fatty acid
  • Fatty acyl
  • Fatty acid
  • 1,2-dithiolane
  • Organic disulfide
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organic oxide
  • Organic oxygen compound
  • Carbonyl group
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cell membrane
  • Cytoplasm
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted PropertiesNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Biological Properties
Cellular Locations
  • Cell membrane
  • Cytoplasm
  • Membrane
Biospecimen Locations
  • Kidney
  • Liver
  • Milk
  • Neuron
  • Placenta
  • Skeletal Muscle
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
KidneyExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
LiverExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
NeuronExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
PlacentaExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Skeletal MuscleExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0001451
DrugBank IDDB00166
Phenol Explorer Compound IDNot Available
FooDB IDFDB022631
KNApSAcK IDC00000754
Chemspider ID5886
KEGG Compound IDC16241
BioCyc IDLIPOIC-ACID
BiGG ID35801
Wikipedia LinkLipoic_acid
METLIN ID126
PubChem Compound6112
PDB IDNot Available
ChEBI ID30314
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Qian L, Zhao A, Zhang Y, Chen T, Zeisel SH, Jia W, Cai W: Metabolomic Approaches to Explore Chemical Diversity of Human Breast-Milk, Formula Milk and Bovine Milk. Int J Mol Sci. 2016 Dec 17;17(12). pii: ijms17122128. doi: 10.3390/ijms17122128. [PubMed:27999311 ]

Enzymes

General function:
Involved in dihydrolipoyllysine-residue acetyltransfera
Specific function:
The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2), and thereby links the glycolytic pathway to the tricarboxylic cycle.
Gene Name:
DLAT
Uniprot ID:
P11180
Molecular weight:
1066.0
General function:
Lipid transport and metabolism
Specific function:
Catalyzes the activation of fatty acids by CoA to produce an acyl-CoA, the first step in fatty acid metabolism (PubMed:11382754, PubMed:10561077). Capable of activating medium-chain fatty acids (e.g. butyric (C4) to decanoic (C10) acids), and certain carboxylate-containing xenobiotics, e.g. benzoate (PubMed:10561077, PubMed:11382754). Also catalyzes the activation of lipoate to lipoyl-nucleoside monophosphate (PubMed:11382754). Activates lipoate with GTP at a 1000-fold higher rate than with ATP and activates both (R)- and (S)-lipoate to the respective lipoyl-GMP, with a preference for (R)-lipoate (PubMed:11382754).
Gene Name:
ACSM1
Uniprot ID:
Q9BEA2
Molecular weight:
64923.0
General function:
Energy production and conversion
Specific function:
Dihydrolipoamide succinyltransferase (E2) component of the 2-oxoglutarate dehydrogenase complex (By similarity). The 2-oxoglutarate dehydrogenase complex catalyzes the overall conversion of 2-oxoglutarate to succinyl-CoA and CO(2) (By similarity). The 2-oxoglutarate dehydrogenase complex is mainly active in the mitochondrion. A fraction of the 2-oxoglutarate dehydrogenase complex also localizes in the nucleus and is required for lysine succinylation of histones: associates with KAT2A on chromatin and provides succinyl-CoA to histone succinyltransferase KAT2A (By similarity).
Gene Name:
DLST
Uniprot ID:
P11179
Molecular weight:
48973.0
General function:
Energy production and conversion
Specific function:
Required for anchoring dihydrolipoamide dehydrogenase (E3) to the dihydrolipoamide transacetylase (E2) core of the pyruvate dehydrogenase complexes of eukaryotes. This specific binding is essential for a functional PDH complex.
Gene Name:
PDHX
Uniprot ID:
P22439
Molecular weight:
53886.0
General function:
Energy production and conversion
Specific function:
The branched-chain alpha-keto dehydrogenase complex catalyzes the overall conversion of alpha-keto acids to acyl-CoA and CO(2). It contains multiple copies of three enzymatic components: branched-chain alpha-keto acid decarboxylase (E1), lipoamide acyltransferase (E2) and lipoamide dehydrogenase (E3). Within this complex, the catalytic function of this enzyme is to accept, and to transfer to coenzyme A, acyl groups that are generated by the branched-chain alpha-keto acid decarboxylase component.
Gene Name:
DBT
Uniprot ID:
P11181
Molecular weight:
53410.0
General function:
Amino acid transport and metabolism
Specific function:
The glycine cleavage system catalyzes the degradation of glycine.
Gene Name:
AMT
Uniprot ID:
P25285
Molecular weight:
42869.0
General function:
Amino acid transport and metabolism
Specific function:
The glycine cleavage system catalyzes the degradation of glycine. The H protein (GCSH) shuttles the methylamine group of glycine from the P protein (GLDC) to the T protein (GCST).
Gene Name:
GCSH
Uniprot ID:
P20821
Molecular weight:
18791.0
General function:
Not Available
Specific function:
Not Available
Gene Name:
DLD
Uniprot ID:
F1N206
Molecular weight:
54187.0
Reactions
Dihydrolipoate + NAD → Lipoic acid + NADHdetails