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 4ZSY
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Mechanism of Inactivation of GABA Aminotransferase by (E)- and (Z)-(1S,3S)-3-Amino-4-fluoromethylenyl-1-cyclopentanoic Acid.
Lee, H., Le, H.V., Wu, R., Doud, E., Sanishvili, R., Kellie, J.F., Compton, P.D., Pachaiyappan, B., Liu, D., Kelleher, N.L., Silverman, R.B.
Acs Chem.Biol.
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