Hyperekplexia mutation of glycine receptors: decreased gating efficacy with altered binding thermodynamics.

Abstract excerpt

[(3)H]Strychnine binding was studied to recombinant human alpha(1) and the hyperekplexia mutant alpha(1)R271L glycine receptors (GlyRs) transiently expressed in human embryonic kidney (HEK)-293 cell cultures at 0, 18 and 37 degrees. The alpha(1)R271L mutation did not affect the linear van't Hoff plots of the exothermic binding of the antagonist [3H]strychnine while it turned taurine into an antagonist with...

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