Gaba-Transaminase Deficiency, also known as gamma-aminobutyric acid transaminase deficiency, is related to gaba aminotransferase deficiency and hypotonia, and has symptoms including lethargy An important gene associated with Gaba-Transaminase Deficiency is ABAT (4-Aminobutyrate Aminotransferase), and among its related pathways/superpathways are Transmission across Chemical Synapses and Neurotransmitter release cycle. Affiliated tissues include brain, and related phenotypes are seizure and hyperreflexia