Fredrik Osterberg

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Voltage-gated K channels are regulated by extracellular divalent cations such as Mg(2+) and Sr(2+), either by screening of fixed negative surface charges, by binding directly or close to the voltage sensor, or by binding to the pore. Different K channels display different sensitivity to divalent cations. For instance, 20 mM MgCl(2) shifts the conductance(More)
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