GABA, in turn, is degraded by GABA-transaminase GABA-T converting it to succinic semialdehyde which is metabolised by succinyl semialdehyde dehydrogenase to succinic acid.
A su vez el GABA es degradado por la transaminasa GABA T a succinil semialdehido el cual se metaboliza por medio de la enzima succinil semialdehido deshidrogenasa a ácido succínico.