You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version3.6
Creation Date2008-08-13 15:46:23 UTC
Update Date2016-02-11 01:08:01 UTC
HMDB IDHMDB06855
Secondary Accession NumbersNone
Metabolite Identification
Common Name(S)-2-Acetolactate
Description(S)-2-Acetolactate is an intermediate in the biosynthesis of valine, leucine and isoleucine (KEGG ID C06010 ). It is the sixth to last step in the synthesis of protein and is converted from 2-hydroxy-3-methyl-2-oxobutanoate via the enzyme acetolactate synthase [EC:2.2.1.6]. It is then converted to 3-hydroxy-3-methyl-2-oxobutanoate via the enzyme ketol-acid reductoisomerase [EC:1.1.1.86].
Structure
Thumb
Synonyms
ValueSource
(S)-2-AcetolactateChEBI
(S)-2-Acetolactic acidChEBI
(S)-2-Hydroxy-2-methyl-3-oxobutanoateChEBI
(2S)-2-Hydroxy-2-methyl-3-oxobutanoateGenerator
(S)-2-Hydroxy-2-methyl-3-oxobutanoic acidGenerator
Chemical FormulaC5H8O4
Average Molecular Weight132.1146
Monoisotopic Molecular Weight132.042258744
IUPAC Name(2S)-2-hydroxy-2-methyl-3-oxobutanoic acid
Traditional Nameacetolactic acid
CAS Registry NumberNot Available
SMILES
CC(=O)[C@](C)(O)C(O)=O
InChI Identifier
InChI=1S/C5H8O4/c1-3(6)5(2,9)4(7)8/h9H,1-2H3,(H,7,8)/t5-/m0/s1
InChI KeyInChIKey=NMDWGEGFJUBKLB-YFKPBYRVSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentHydroxy fatty acids
Alternative Parents
Substituents
  • Hydroxy fatty acid
  • Methyl-branched fatty acid
  • Short-chain keto acid
  • Branched fatty acid
  • Beta-keto acid
  • Keto acid
  • Hydroxy acid
  • Beta-hydroxy ketone
  • Alpha-hydroxy acid
  • Acyloin
  • Tertiary alcohol
  • Alpha-hydroxy ketone
  • Ketone
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Endogenous
  • Food
Biofunction
  • Cell signaling
  • Fuel and energy storage
  • Fuel or energy source
  • Membrane integrity/stability
Application
  • Nutrients
  • Stabilizers
  • Surfactants and Emulsifiers
Cellular locations
  • Extracellular
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility286.0 mg/mLALOGPS
logP-0.65ALOGPS
logP-0.28ChemAxon
logS0.33ALOGPS
pKa (Strongest Acidic)3.45ChemAxon
pKa (Strongest Basic)-4.6ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area74.6 Å2ChemAxon
Rotatable Bond Count2ChemAxon
Refractivity28.59 m3·mol-1ChemAxon
Polarizability11.81 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MSNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-001i-5900000000-a14af8bd96fdcce5e84fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-015l-9400000000-53c1f10a4a9b63a25574View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-01b9-9000000000-03c96ef4ce31ab174fddView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0019-9700000000-641c507686f1b0493bdeView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-9000000000-cd68c82882667330e329View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0079-9000000000-f0530bd3c4f32baa697cView in MoNA
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB024120
KNApSAcK IDNot Available
Chemspider ID389710
KEGG Compound IDC06010
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB06855
Metagene LinkHMDB06855
METLIN IDNot Available
PubChem Compound440878
PDB IDNot Available
ChEBI ID18409
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in magnesium ion binding
Specific function:
Not Available
Gene Name:
ILVBL
Uniprot ID:
A1L0T0
Molecular weight:
67867.2