Nucleotide and deduced amino acid sequences of the GABA(A) receptor ?-subunit from human brain

Neurochem Int. 1989;15(1):33-8. doi: 10.1016/0197-0186(89)90073-9.

Abstract

cDNA cloning of the ?-aminobutyric acid (GABA)(A) receptor ?-subunit from human brain has been attempted in order to clarify its structure. Using a bovine cDNA fragment as a homologous probe, the cDNA clone containing complete coding regions of the GABA(A) receptor ?-subunit was isolated by screening the human brain cDNA library, and its full amino acid sequences were deduced from the nucleotide sequence. The nucleotide and deduced amino acid sequences showed a high homology in comparison with those in bovine brain. The human brain mRNA indicated the presence of a single mRNA species of about 4500 bases by RNA blot hybridization. In addition, Southern blot analysis suggested that the human gene of the GABA(A) receptor ?-subunit might possess an exon-intron organization.