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ABAT

Function

Catalyzes the conversion of gamma-aminobutyrate and L-beta-aminoisobutyrate to succinate semialdehyde and methylmalonate semialdehyde, respectively (PubMed:10407778, PubMed:15528998). Can also convert delta-aminovalerate and beta-alanine (By similarity).

Involvement in disease

GABA-transaminase deficiency

GABATD

An enzymatic deficiency resulting in psychomotor retardation, hypotonia, hyperreflexia, lethargy, refractory seizures, and EEG abnormalities. GABATD inheritance is autosomal recessive.

None

The disease is caused by variants affecting the gene represented in this entry.

Sequence Similarities

Belongs to the class-III pyridoxal-phosphate-dependent aminotransferase family.

Tissue Specificity

Liver > pancreas > brain > kidney > heart > placenta.

Cellular localization

Alternative names

GABAT, ABAT, (S)-3-amino-2-methylpropionate transaminase, GABA aminotransferase, Gamma-amino-N-butyrate transaminase, L-AIBAT, GABA-AT, GABA transaminase, GABA-T

swissprot:P80404 entrezGene:18 omim:137150