The 3D structure for the receptor, human GABA-T (Uniprot ID P80404) was obtained by using AlphaFold . The 3D structure of pig GABA-T was obtained from RCSB Databank (PDB ID 4Y0H, chain A) . Theseus 3.3.0 was used for sequence alignment and for superposition of the human GABA-T structure on the structure of rat GABA-T.