Tags: Enzyme.
In enzymology 4-aminobutyrate transaminase (EC 2.6.1.19) also called GABA transaminase or 4-aminobutyrate aminotransferase is an enzyme that catalyzes the chemical reaction:4-aminobutanoate + 2-oxoglutarate succinate semialdehyde + L-glutamateThus the two substrates of this enzyme are 4-aminobutanoate (GABA) and 2-oxoglutarate.