Record Information
Version1.0
Creation Date2016-09-30 22:30:59 UTC
Update Date2020-06-04 19:37:14 UTC
BMDB IDBMDB0000452
Secondary Accession Numbers
  • BMDB00452
Metabolite Identification
Common NameL-Alpha-aminobutyric acid
Description2-Aminobutyrate, also known as L-butyrine or L-homoalanine, belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. 2-Aminobutyrate exists as a solid, very hydrophobic, practically insoluble (in water), and relatively neutral molecule. 2-Aminobutyrate exists in all eukaryotes, ranging from yeast to humans.
Structure
Thumb
Synonyms
ValueSource
(-)-2-Aminobutyric acidChEBI
(2S)-2-Aminobutyric acidChEBI
(S)-2-AminobutanoateChEBI
(S)-2-Aminobutanoic acidChEBI
(S)-2-Aminobutyric acidChEBI
L-(+)-2-Aminobutyric acidChEBI
L-2-AminobuttersaeureChEBI
L-2-Aminobutyric acidChEBI
L-alpha-Amino-N-butyric acidChEBI
L-ButyrineChEBI
S-ButyrineChEBI
(-)-2-AminobutyrateGenerator
(2S)-2-AminobutyrateGenerator
(S)-2-AminobutyrateGenerator
L-(+)-2-AminobutyrateGenerator
L-2-AminobutyrateGenerator
L-a-Amino-N-butyrateGenerator
L-a-Amino-N-butyric acidGenerator
L-alpha-Amino-N-butyrateGenerator
L-Α-amino-N-butyrateGenerator
L-Α-amino-N-butyric acidGenerator
L-a-AminobutyrateGenerator
L-a-Aminobutyric acidGenerator
L-alpha-AminobutyrateGenerator
L-Α-aminobutyrateGenerator
L-Α-aminobutyric acidGenerator
(+)-2-AminobutanoateHMDB
(+)-2-Aminobutanoic acidHMDB
(+)-2-Aminobutyric acidHMDB
(+)-alpha-Aminobutyric acidHMDB
(2S)-2-AminobutanoateHMDB
(2S)-2-Aminobutanoic acidHMDB, MeSH
(S)-(+)-alpha-Aminobutyric acidHMDB
(S)-2-amino-ButanoateHMDB
(S)-2-amino-Butanoic acidHMDB
2-AminobutanoateHMDB
2-Aminobutanoic acidHMDB, MeSH
2-AminobutyrateHMDB
2S-amino-ButanoateHMDB, Generator
2S-amino-Butanoic acidHMDB
alpha-Aminobutyric acidHMDB, MeSH
L-2-amino-N-Butyric acidHMDB
L-EthylglycineHMDB
Butyrine, (R)-isomerMeSH, HMDB
2-Aminobutyric acidMeSH, HMDB, Generator
alpha-Aminobutyric acid, (+-)-isomerMeSH, HMDB
ButyrineMeSH, HMDB
Butyrine, (S)-isomerMeSH, HMDB
L-HomoalanineMeSH, HMDB
alpha-Aminobutyric acid, (S)-isomerMeSH, HMDB
HomoalanineMeSH, HMDB
alpha-Aminobutyric acid, (R)-isomerMeSH, HMDB
Butyrine, (+-)-isomerMeSH, HMDB
L-2-AminobutanoateGenerator, HMDB
Chemical FormulaC4H9NO2
Average Molecular Weight103.1198
Monoisotopic Molecular Weight103.063328537
IUPAC Name(2S)-2-aminobutanoic acid
Traditional Name(-)-2-aminobutyric acid
CAS Registry Number1492-24-6
SMILES
CC[C@H](N)C(O)=O
InChI Identifier
InChI=1S/C4H9NO2/c1-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1
InChI KeyQWCKQJZIFLGMSD-VKHMYHEASA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentL-alpha-amino acids
Alternative Parents
Substituents
  • L-alpha-amino acid
  • Fatty acid
  • Amino acid
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Amine
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Primary aliphatic amine
  • Organic nitrogen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
  • Exogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cytoplasm
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point291 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP-3.17HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP-2.6ALOGPS
logP-2.3ChemAxon
logS0.54ALOGPS
pKa (Strongest Acidic)2.62ChemAxon
pKa (Strongest Basic)9.53ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area63.32 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity25.02 m³·mol⁻¹ChemAxon
Polarizability10.34 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-001i-0900000000-5659d6d78898cfc7e3e1View in MoNA
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-001i-0900000000-c8849b7c3a366e6c4cb8View in MoNA
GC-MSGC-MS Spectrum - GC-MS (3 TMS)splash10-0udi-0790000000-70b33ceb8fc59cf98fc5View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-001i-0900000000-5659d6d78898cfc7e3e1View in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0udi-0790000000-70b33ceb8fc59cf98fc5View in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-001i-0900000000-c8849b7c3a366e6c4cb8View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a4i-9000000000-231d9b85dacdfc8cfa1aView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-00di-9500000000-47e250b31bdc60f6848cView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-0udi-0900000000-01184422112c4f45d2c2View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-0udi-0900000000-771c55fe95bc80e67d59View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-0udi-1900000000-ddc187aaa752f4b10f2bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-0006-9000000000-3bdaa058b45a133c3bbdView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-0udi-0900000000-02624b93137883b214adView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0udi-0900000000-01184422112c4f45d2c2View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0udi-0900000000-771c55fe95bc80e67d59View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0udi-1900000000-ddc187aaa752f4b10f2bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0006-9000000000-3bdaa058b45a133c3bbdView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-0udi-0900000000-02624b93137883b214adView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-0a4i-9100000000-ee8abbcaf7c2b98fbbf2View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-0a4l-9000000000-1345dd328d7b79523e9bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-052f-9100000000-338f85ef5403099a76c7View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Positivesplash10-0udi-5900000000-116db8b71549d033ab56View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Positivesplash10-0a4i-9000000000-4ce723a5a5c9873c57ddView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Positivesplash10-0a4i-9000000000-7cce1c626271fbc1ff33View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Positivesplash10-052f-9000000000-d7ee22bb360494f5a6edView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Positivesplash10-0006-9000000000-e3892ebe321e35491da7View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-0a4i-9200000000-c71bee21cc5879ab61bbView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0udi-5900000000-10bf801074f410f1316fView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0a4i-9000000000-8d75ea4bc446938a682eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0a4i-9000000000-7cce1c626271fbc1ff33View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-052f-9000000000-d7ee22bb360494f5a6edView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0006-9000000000-e3892ebe321e35491da7View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0a4i-9200000000-c71bee21cc5879ab61bbView in MoNA
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Blood
  • Kidney
  • Liver
  • Milk
  • Semen
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
KidneyExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
LiverDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified1 - 10 uMNot SpecifiedNot SpecifiedNormal details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
SemenDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Sub/clinical ketosis
details
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
All Mycobacterium avium subsp. paratuberculosis-infected
details
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
High dose Mycobacterium avium subsp. paratuberculosis-infected
details
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Low dose Mycobacterium avium subsp. paratuberculosis-infected
details
HMDB IDHMDB0000452
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB012537
KNApSAcK IDNot Available
Chemspider ID72524
KEGG Compound IDC02356
BioCyc IDCPD0-1942
BiGG IDNot Available
Wikipedia LinkAlpha-Aminobutyric acid
METLIN ID12
PubChem Compound80283
PDB IDNot Available
ChEBI ID35619
References
Synthesis ReferenceFotheringham, I. G.; Grinter, N.; Pantaleone, D. P.; Senkpeil, R. F.; Taylor, P. P. Engineering of a novel biochemical pathway for the biosynthesis of l-2-aminobutyric acid in Escherichia coli K12. Bioorganic & Medicinal Chemistry (1999), 7(10), 2209-2213.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Klein MS, Almstetter MF, Schlamberger G, Nurnberger N, Dettmer K, Oefner PJ, Meyer HH, Wiedemann S, Gronwald W: Nuclear magnetic resonance and mass spectrometry-based milk metabolomics in dairy cows during early and late lactation. J Dairy Sci. 2010 Apr;93(4):1539-50. doi: 10.3168/jds.2009-2563. [PubMed:20338431 ]
  2. Melzer N, Wittenburg D, Hartwig S, Jakubowski S, Kesting U, Willmitzer L, Lisec J, Reinsch N, Repsilber D: Investigating associations between milk metabolite profiles and milk traits of Holstein cows. J Dairy Sci. 2013 Mar;96(3):1521-34. doi: 10.3168/jds.2012-5743. [PubMed:23438684 ]
  3. Mung D, Li L: Applying quantitative metabolomics based on chemical isotope labeling LC-MS for detecting potential milk adulterant in human milk. Anal Chim Acta. 2018 Feb 25;1001:78-85. doi: 10.1016/j.aca.2017.11.019. Epub 2017 Nov 14. [PubMed:29291809 ]