Record Information
Version2.0
Creation Date2012-05-31 14:01:40 -0600
Update Date2015-06-03 15:54:35 -0600
Secondary Accession Numbers
  • ECMDB04001
Identification
Name:2-Aceto-2-hydroxy-butyrate
Description:(S)-2-Aceto-2-hydroxybutanoic acid is an intermediate in branched chain amino acid metabolism. It is converted from 2-oxobutanoate or 2-hydoxyethyl ThPP via acetolactate synthase.
Structure
Thumb
Synonyms:
  • α-aceto-α-hydroxybutyrate
  • α-aceto-α-hydroxybutyric acid
  • (2S)-2-ethyl-2-hydroxy-3-oxobutanoate
  • (2S)-2-ethyl-2-hydroxy-3-oxobutanoic acid
  • (S)-2-Aceto-2-hydroxybutanoate
  • (S)-2-Aceto-2-hydroxybutanoic acid
  • (S)-2-Hydroxy-2-ethyl-3-oxobutanoate
  • (S)-2-Hydroxy-2-ethyl-3-oxobutanoic acid
  • 2-aceto-2-hydroxy-butyrate
  • 2-Aceto-2-hydroxy-butyric acid
  • a-aceto-a-Hydroxybutyrate
  • a-aceto-a-Hydroxybutyric acid
  • Acetohydroxybutanoate
  • Acetohydroxybutanoic acid
  • Acetohydroxybutyrate
  • Acetohydroxybutyric acid
  • Alpha-Aceto-alpha-hydroxybutyrate
  • Alpha-Aceto-alpha-hydroxybutyric acid
  • α-aceto-α-Hydroxybutyrate
  • α-aceto-α-Hydroxybutyric acid
Chemical Formula:C6H10O4
Weight:Average: 146.1412
Monoisotopic: 146.057908808
InChI Key:VUQLHQFKACOHNZ-LURJTMIESA-N
InChI:InChI=1S/C6H10O4/c1-3-6(10,4(2)7)5(8)9/h10H,3H2,1-2H3,(H,8,9)/t6-/m0/s1
CAS number:3142-65-2
IUPAC Name:(2S)-2-ethyl-2-hydroxy-3-oxobutanoic acid
Traditional IUPAC Name:(2S)-2-ethyl-2-hydroxy-3-oxobutanoic acid
SMILES:CC[C@](O)(C(C)=O)C(O)=O
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as short-chain keto acids and derivatives. These are keto acids with an alkyl chain the contains less than 6 carbon atoms.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassKeto acids and derivatives
Sub ClassShort-chain keto acids and derivatives
Direct ParentShort-chain keto acids and derivatives
Alternative Parents
Substituents
  • Beta-keto acid
  • Branched fatty acid
  • Hydroxy fatty acid
  • Short-chain keto acid
  • Alpha-hydroxy acid
  • Fatty acyl
  • Acyloin
  • Beta-hydroxy ketone
  • Hydroxy acid
  • Tertiary alcohol
  • Alpha-hydroxy ketone
  • Ketone
  • Carboxylic acid derivative
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carbonyl group
  • Alcohol
  • Organic oxygen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
State:Solid
Charge:-1
Melting point:Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility259 g/LALOGPS
logP-0.58ALOGPS
logP0.24ChemAxon
logS0.25ALOGPS
pKa (Strongest Acidic)3.6ChemAxon
pKa (Strongest Basic)-4.7ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area74.6 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity33.11 m³·mol⁻¹ChemAxon
Polarizability13.72 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Cytoplasm
Reactions:
SMPDB Pathways:
isoleucine biosynthesisPW000818 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG Pathways:
  • Valine, leucine and isoleucine biosynthesis ec00290
EcoCyc Pathways:
Concentrations
Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9300000000-4a32387e4d1a3c2518e2View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-004i-9260000000-03d854f5c6e2c1cd66ccView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-1900000000-58139948a2d318b20cd3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-7900000000-5d95d041962e4d0c29c2View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-000i-9400000000-54a124cdee1ab9c9f382View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-3900000000-c26fd82bd80ef12ed78aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0pb9-9500000000-79a2c717c39914d90709View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0ab9-9000000000-14cfb3f09136a8d1b1fdView in MoNA
References
References:
  • Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. Pubmed: 22080510
  • Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. Pubmed: 21097882
  • van der Werf, M. J., Overkamp, K. M., Muilwijk, B., Coulier, L., Hankemeier, T. (2007). "Microbial metabolomics: toward a platform with full metabolome coverage." Anal Biochem 370:17-25. Pubmed: 17765195
  • Yurtsever D. (2007). Fatty acid methyl ester profiling of Enterococcus and Esherichia coli for microbial source tracking. M.sc. Thesis. Villanova University: U.S.A
Synthesis Reference:Not Available
Material Safety Data Sheet (MSDS)Not Available
External Links:
ResourceLink
CHEBI ID27681
HMDB IDHMDB0006900
Pubchem Compound ID8279
Kegg IDC06006
ChemSpider ID389708
Wikipedia IDNot Available
BioCyc ID2-ACETO-2-HYDROXY-BUTYRATE
EcoCyc ID2-ACETO-2-HYDROXY-BUTYRATE

Enzymes

General function:
Involved in magnesium ion binding
Specific function:
2 pyruvate = 2-acetolactate + CO(2)
Gene Name:
ilvI
Uniprot ID:
P00893
Molecular weight:
62984
Reactions
2 pyruvate = 2-acetolactate + CO(2).
General function:
Involved in acetolactate synthase activity
Specific function:
2 pyruvate = 2-acetolactate + CO(2)
Gene Name:
ilvH
Uniprot ID:
P00894
Molecular weight:
17977
Reactions
2 pyruvate = 2-acetolactate + CO(2).
General function:
Involved in oxidation-reduction process
Specific function:
(R)-2,3-dihydroxy-3-methylbutanoate + NADP(+) = (S)-2-hydroxy-2-methyl-3-oxobutanoate + NADPH
Gene Name:
ilvC
Uniprot ID:
P05793
Molecular weight:
54069
Reactions
(R)-2,3-dihydroxy-3-methylbutanoate + NADP(+) = (S)-2-hydroxy-2-methyl-3-oxobutanoate + NADPH.
(2R,3R)-2,3-dihydroxy-3-methylpentanoate + NADP(+) = (S)-2-hydroxy-2-ethyl-3-oxobutanoate + NADPH.
General function:
Involved in magnesium ion binding
Specific function:
2 pyruvate = 2-acetolactate + CO(2)
Gene Name:
ilvB
Uniprot ID:
P08142
Molecular weight:
60440
Reactions
2 pyruvate = 2-acetolactate + CO(2).
General function:
Involved in amino acid binding
Specific function:
2 pyruvate = 2-acetolactate + CO(2)
Gene Name:
ilvN
Uniprot ID:
P0ADF8
Molecular weight:
11106
Reactions
2 pyruvate = 2-acetolactate + CO(2).
General function:
Involved in acetolactate synthase activity
Specific function:
2 pyruvate = 2-acetolactate + CO(2)
Gene Name:
ilvM
Uniprot ID:
P0ADG1
Molecular weight:
9703
Reactions
2 pyruvate = 2-acetolactate + CO(2).