L-2-Hydroxyglutaric acid (CHEM003207)

Record Information
Version1.0
Creation Date2014-08-29 06:03:11 UTC
Update Date2026-04-06 11:40:12 UTC
Accession NumberCHEM003207
Identification
Common NameL-2-Hydroxyglutaric acid
ClassSmall Molecule
Description
L-2-Hydroxyglutaric acid is an alpha hydroxy acid. In humans the compound is formed by a hydroxyacid-oxoacid transhydrogenase whereas in bacteria is formed by a 2-hydroxyglutarate synthase. The compound can be converted to α-ketoglutaric acid through the action of a 2-hydroxyglutarate dehydrogenase. In humans, there are two such enzymes called D2HGDH and L2HGDH. Tissue accumulation of high amounts of D-2-hydroxyglutaric acid is the biochemical hallmark of the inherited neurometabolic disorder D-2-hydroxyglutaric aciduria. Both the D and the L stereoisomers of hydroxyglutaric acid (EC 1.1.99.2) are found in body fluids. Accumulation of L-2-hydroxyglutaric acid has been reported in multiple patients who have a clinical phenotype of progressive neurodegeneration with extrapyramidal and cerebellar signs, seizures, and spongiform changes in the white matter. Patients who have excess accumulation of D-2-hydroxyglutaric acid in the urine exhibit a variable phenotype but included mental retardation, macrocephaly with cerebral atrophy, hypotonia, seizures, and involuntary movements.
Contaminant Sources
  • FooDB Chemicals
  • HMDB Contaminants - Feces
  • HMDB Contaminants - Urine
  • T3DB toxins
Contaminant Type
  • Animal Toxin
  • Food Toxin
  • Metabolite
  • Natural Compound
  • Organic Compound
Chemical Structure
MOLSDF3D SDFPDBSMILESInChI View 3D Structure
Synonyms
ValueSource
(S)-2-HydroxyglutarateChEBI
(S)-2-Hydroxyglutaric acidGenerator
L-2-HydroxyglutarateGenerator
(S)-Α-hydroxyglutarateHMDB
(S)-Α-hydroxyglutaric acidHMDB
(S)-alpha-HydroxyglutarateHMDB
(S)-alpha-Hydroxyglutaric acidHMDB
2-Hydroxy-(S)-pentanedioateHMDB
2-Hydroxy-(S)-pentanedioic acidHMDB
2-Hydroxy-L-glutarateHMDB
2-Hydroxy-L-glutaric acidHMDB
L-Α-hydroxyglutarateHMDB
L-Α-hydroxyglutaric acidHMDB
L-alpha-HydroxyglutarateHMDB
L-alpha-Hydroxyglutaric acidHMDB
L-2-Hydroxyglutaric acidHMDB
Chemical FormulaC5H8O5
Average Molecular Mass148.114 g/mol
Monoisotopic Mass148.037 g/mol
CAS Registry Number13095-48-2
IUPAC Name(2S)-2-hydroxypentanedioic acid
Traditional NameL-2-hydroxyglutaric acid
SMILES[H][C@](O)(CCC(O)=O)C(O)=O
InChI IdentifierInChI=1S/C5H8O5/c6-3(5(9)10)1-2-4(7)8/h3,6H,1-2H2,(H,7,8)(H,9,10)/t3-/m0/s1
InChI KeyHWXBTNAVRSUOJR-VKHMYHEASA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as short-chain hydroxy acids and derivatives. These are hydroxy acids with an alkyl chain the contains less than 6 carbon atoms.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassHydroxy acids and derivatives
Sub ClassShort-chain hydroxy acids and derivatives
Direct ParentShort-chain hydroxy acids and derivatives
Alternative Parents
Substituents
  • Short-chain hydroxy acid
  • Fatty acid
  • Monosaccharide
  • Dicarboxylic acid or derivatives
  • Alpha-hydroxy acid
  • Secondary alcohol
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginEndogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationsNot Available
Pathways
NameSMPDB LinkKEGG Link
2-Hydroxyglutric Aciduria (D And L Form)SMP00136 Not Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility157 g/LALOGPS
logP-1ALOGPS
logP-0.82ChemAxon
logS0.03ALOGPS
pKa (Strongest Acidic)3.28ChemAxon
pKa (Strongest Basic)-3.8ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area94.83 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity29.63 m³·mol⁻¹ChemAxon
Polarizability12.97 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Toxicity Profile
Route of ExposureEndogenous, Injection
Mechanism of Toxicity2-hydroxyglutarate is an oncometabolite. It is a competitive inhibitor of multiple α-ketoglutarate-dependent dioxygenases, including histone demethylases and the TET family of 5-methlycytosine (5mC) hydroxylases. As a result, high levels of 2-hydroxyglutarate lead to genome-wide histone and DNA methylation alterations, which in turn lead to mutations that ultimately cause cancer. L-2-hydroxyglutarate mediates its neurotoxicity through activation of N-methyl-D-aspartate receptors. L-2-hydroxyglutarate is structurally similar to the excitatory amino acid glutamate and stimulates neurodegeneration by mechanisms well-known for glutamate, NMDA or mitochondrial toxins (9).
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)Not listed by IARC. Has been implicated in oncogenesis (8, 7).
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsChronically high levels of L-2-hydroxyglutaric acid are associated with the inborn error of metabolism called: 2-Hydroxyglutaric Aciduria. L-2-hydroxyglutarate is neurotoxic. L-2-hydroxyglutarate mediates its neurotoxicity through activation of N-methyl-D-aspartate receptors. Symptoms of L-2-Hydroxyglutaric Aciduria include hypotonia, tremors, and epilepsy declining into spongiform leukoencephalopathy, muscular choreodystonia, mental retardation, and psychomotor regression.
SymptomsChronic exposure of high levels of L-2-hydroxyglutarate leads to hypotonia, tremors, and epilepsy declining into spongiform leukoencephalopathy, muscular choreodystonia, mental retardation, and psychomotor regression.
TreatmentNot Available
Concentrations
Not Available
External Links
DrugBank IDNot Available
HMDB IDHMDB0000694
FooDB IDFDB022185
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDCPD-381
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkAlpha-Hydroxyglutaric acid
Chemspider ID388969
ChEBI ID32797
PubChem Compound ID439939
Kegg Compound IDC03196
YMDB IDNot Available
ECMDB IDECMDB00694
References
Synthesis ReferenceKobayashi, Hidehiko; Yamaguchi, Koretaka; Yamashita, Takeshi. a-Hydroxyglutaric acid from glutamic acid. Jpn. Tokkyo Koho (1968), 3 pp.
MSDSLink
General References
1. Kobayashi, Hidehiko; Yamaguchi, Koretaka; Yamashita, Takeshi. a-Hydroxyglutaric acid from glutamic acid. Jpn. Tokkyo Koho (1968), 3 pp.
2. Guneral F, Bachmann C: Age-related reference values for urinary organic acids in a healthy Turkish pediatric population. Clin Chem. 1994 Jun;40(6):862-6.
3. Gibson KM, ten Brink HJ, Schor DS, Kok RM, Bootsma AH, Hoffmann GF, Jakobs C: Stable-isotope dilution analysis of D- and L-2-hydroxyglutaric acid: application to the detection and prenatal diagnosis of D- and L-2-hydroxyglutaric acidemias. Pediatr Res. 1993 Sep;34(3):277-80.
4. Fujitake J, Ishikawa Y, Fujii H, Nishimura K, Hayakawa K, Inoue F, Terada N, Okochi M, Tatsuoka Y: L-2-hydroxyglutaric aciduria: two Japanese adult cases in one family. J Neurol. 1999 May;246(5):378-82.
5. Barth PG, Hoffmann GF, Jaeken J, Lehnert W, Hanefeld F, van Gennip AH, Duran M, Valk J, Schutgens RB, Trefz FK, et al.: L-2-hydroxyglutaric acidemia: a novel inherited neurometabolic disease. Ann Neurol. 1992 Jul;32(1):66-71.
6. Rashed MS, AlAmoudi M, Aboul-Enein HY: Chiral liquid chromatography tandem mass spectrometry in the determination of the configuration of 2-hydroxyglutaric acid in urine. Biomed Chromatogr. 2000 Aug;14(5):317-20.
7. de Klerk JB, Huijmans JG, Stroink H, Robben SG, Jakobs C, Duran M: L-2-hydroxyglutaric aciduria: clinical heterogeneity versus biochemical homogeneity in a sibship. Neuropediatrics. 1997 Dec;28(6):314-7.
8. Collins RRJ, Patel K, Putnam WC, Kapur P, Rakheja D: Oncometabolites: A New Paradigm for Oncology, Metabolism, and the Clinical Laboratory. Clin Chem. 2017 Dec;63(12):1812-1820. doi: 10.1373/clinchem.2016.267666. Epub 2017 Oct 16.
9. Kolker S, Pawlak V, Ahlemeyer B, Okun JG, Horster F, Mayatepek E, Krieglstein J, Hoffmann GF, Kohr G: NMDA receptor activation and respiratory chain complex V inhibition contribute to neurodegeneration in d-2-hydroxyglutaric aciduria. Eur J Neurosci. 2002 Jul;16(1):21-8.