| Namespace | disease_ontology | Obsolete | false |
| description | A gamma-amino butyric acid metabolism disorder that is characterized by a defect in the gene coding for gamma-aminobutyrate transaminase, which is responsible for catabolism of gamma-aminobutyric acid (GABA), an important, mostly inhibitory neurotransmitter in the central nervous system, into succinic semialdehyde. |