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Updated: Oct 9, 2026

Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
Published on: August 16, 2018
Altered atypical coupling of gamma-aminobutyrate type A receptor agonist and convulsant binding sites in
S T Sinkkonen1, R M Mihalek, G E Homanics
1Department of Pharmacology and Clinical Pharmacology, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland.
Abstract:
We searched for subunit correlations for GABA(A) receptor-associated atypically GABA-insensitive [35S]TBPS binding. The homomeric beta3 subunit receptors could be excluded, as GABA-insensitive [35S]TBPS binding was present in beta3-/- mice. Localization of GABA-insensitive [35S]TBPS binding correlated best with those of delta, alpha4 and alpha6 subunit mRNAs. The amounts of GABA-insensitive [35S]TBPS binding components were increased in delta-/- mice, but dramatically reduced in alpha6-/- mice, suggesting a role for alpha6 but excluding delta subunits.

