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ENZYME entry: EC 2.6.1.22

Accepted Name
(S)-3-amino-2-methylpropionate transaminase.
Alternative Name(s)
(S)-3-amino-2-methylpropionate aminotransferase.
beta-aminobutyric transaminase.
beta-aminoisobutyrate-alpha-ketoglutarate transaminase.
L-3-aminoisobutyrate aminotransferase.
L-3-aminoisobutyrate transaminase.
L-3-aminoisobutyric aminotransferase.
L-AIBAT.
Reaction catalysed
(S)-3-amino-2-methylpropanoate + 2-oxoglutarate <=> 2-methyl-3-oxopropanoate + L-glutamate
Comment(s)
  • Also acts on beta-alanine and other omega-amino acids having carbon chains between 2 and 5.
  • The two enantiomers of the 2-methyl-3-oxopropanoate formed by the enzyme interconvert by enolization, so that this enzyme, together with EC 2.6.1.40, provide a route for interconversion of the enantiomers of 3-amino-2-methylpropanoate.
Cross-references
BRENDA2.6.1.22
EC2PDB2.6.1.22
ExplorEnz2.6.1.22
PRIAM enzyme-specific profiles2.6.1.22
KEGG Ligand Database for Enzyme Nomenclature2.6.1.22
IUBMB Enzyme Nomenclature2.6.1.22
IntEnz2.6.1.22
MEDLINEFind literature relating to 2.6.1.22
MetaCyc2.6.1.22
Rhea expert-curated reactions2.6.1.22
UniProtKB/Swiss-Prot
P94427, GABT_BACSU;  Q9BGI0, GABT_BOVIN;  Q21217, GABT_CAEEL;  
P80404, GABT_HUMAN;  P61922, GABT_MOUSE;  P63505, GABT_MYCBO;  
P40829, GABT_MYCLE;  P9WQ78, GABT_MYCTO;  P9WQ79, GABT_MYCTU;  
P80147, GABT_PIG;  P50554, GABT_RAT;  

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