
IndraLab
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"57 The requirement of both beta 1 - and beta 2 -adrenoceptors for I Kss inhibition by noradrenaline and the PTX sensitivity of this response suggest that the receptors and G i -proteins modulating TREK like channel activity are co-localized, consistent with the ability of beta 1 -/beta 2 -adrenoceptor subtypes to form heterodimers."