CATH Classification

Domain Context

CATH Clusters

Superfamily Aspartate Aminotransferase, domain 1
Functional Family 4-aminobutyrate aminotransferase, mitochondrial

Enzyme Information

2.6.1.22
(S)-3-amino-2-methylpropionate transaminase.
based on mapping to UniProt P80147
(S)-3-amino-2-methylpropanoate + 2-oxoglutarate = 2-methyl-3- oxopropanoate + L-glutamate.
-!- 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.
2.6.1.19
4-aminobutyrate--2-oxoglutarate transaminase.
based on mapping to UniProt P80147
4-aminobutanoate + 2-oxoglutarate = succinate semialdehyde + L-glutamate.
-!- Some preparations also act on beta-alanine, 5-aminopentanoate and (R,S)-3-amino-2-methylpropanoate.

UniProtKB Entries (1)

P80147
GABT_PIG
Sus scrofa
4-aminobutyrate aminotransferase, mitochondrial

PDB Structure

PDB 6B6G
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Design and Mechanism of (S)-3-Amino-4-(difluoromethylenyl)cyclopent-1-ene-1-carboxylic Acid, a Highly Potent gamma-Aminobutyric Acid Aminotransferase Inactivator for the Treatment of Addiction.
Juncosa, J.I., Takaya, K., Le, H.V., Moschitto, M.J., Weerawarna, P.M., Mascarenhas, R., Liu, D., Dewey, S.L., Silverman, R.B.
J. Am. Chem. Soc.