Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-17 23:37:35 UTC
Update Date2024-04-30 19:40:41 UTC
Metabolite IDMMDBc0029687
Metabolite Identification
Common Name(S)-b-aminoisobutyric acid
DescriptionBeta-Aminoisobutyric acid is a non-protein amino acid originating from the catabolism of thymine and valine. Beta-Aminoisobutyric acid occurs in two isomeric forms. The S-enantiomer of beta-Aminoisobutyric acid is predominantly derived from the catabolism of valine. It has been suggested that an altered homoeostasis of b-alanine underlies some of the abnormalities with a dihydropyrimidine dehydrogenase (DPD). DPD constitutes the first step of the pyrimidine degradation pathway, in which the pyrimidine bases uracil and thymine are catabolized to b-alanine and the R-enantiomer of beta-Aminoisobutyric acid respectively. In normal situation with an intact pyrimidine degradation pathway, R-methylmalonic acid semialdehyde can be synthesized directly from the catabolism of thymine. Hence, there might be less cross-over between the valine and thymine pathway, allowing the conversion of S-methylmalonic acid semialdehyde into S-beta-Aminoisobutyric acid and the subsequent accumulation of S-beta-Aminoisobutyric acid. (PMID: 14705962 , 14292857 , 14453202 )
Structure
Synonyms
ValueSource
(S)-3-Amino-2-methylpropanoic acidChEBI
(S)-3-Amino-isobutanoic acidChEBI
(S)-3-Amino-isobutyric acidChEBI
L-3-Amino-isobutanoic acidChEBI
L-3-Amino-isobutyric acidChEBI
(S)-3-AminoisobutyrateKegg
L-3-AminoisobutyrateKegg
(S)-3-AminoisobutanoateKegg
(S)-3-Amino-2-methylpropanoateKegg
(S)-beta-AminoisobutyrateKegg
(S)-3-Amino-isobutanoateGenerator
(S)-3-Amino-isobutyrateGenerator
L-3-Amino-isobutanoateGenerator
L-3-Amino-isobutyrateGenerator
(S)-3-Aminoisobutyric acidGenerator
L-3-Aminoisobutyric acidGenerator
(S)-3-Aminoisobutanoic acidGenerator
(S)-b-AminoisobutyrateGenerator
(S)-b-Aminoisobutyric acidGenerator
(S)-Β-aminoisobutyrateGenerator
(S)-Β-aminoisobutyric acidGenerator
(S)-beta-Aminoisobutyric acidChEBI
(+)-a-Methyl-b-alanineHMDB
(+)-alpha-Methyl-beta-alanineHMDB
(+)-b-Aminoisobutyric acidHMDB
(+)-beta-Aminoisobutyric acidHMDB
(S)-3-amino-2-Methyl-propanoateHMDB
(S)-3-amino-2-Methyl-propanoic acidHMDB
L-2-Methyl-b-alanineHMDB
L-2-Methyl-beta-alanineHMDB
L-3-amino-2-MethylpropanoateHMDB
L-3-amino-2-Methylpropanoic acidHMDB
L-3-amino-2-Methylpropionic acidHMDB
L-b-AminoisobutyrateHMDB
L-b-Aminoisobutyric acidHMDB
L-beta-AminoisobutyrateHMDB
L-beta-Aminoisobutyric acidHMDB
S-b-AminoisobutyrateHMDB
S-beta-AminoisobutyrateHMDB
S-beta-Aminoisobutyric acidHMDB
Molecular FormulaC4H9NO2
Average Mass103.1198
Monoisotopic Mass103.063328537
IUPAC Name(2S)-3-amino-2-methylpropanoic acid
Traditional NameL-β-aminoisobutyric acid
CAS Registry Number4249-19-8
SMILES
C[C@@H](CN)C(O)=O
InChI Identifier
InChI=1S/C4H9NO2/c1-3(2-5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1
InChI KeyQCHPKSFMDHPSNR-VKHMYHEASA-N