Anne M. Rapin

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We report here a combination of site-directed mutations that eliminate the high-affinity Ca(2+) response of the large-conductance Ca(2+)-activated K(+) channel (BK(Ca)), leaving only a low-affinity response blocked by high concentrations of Mg(2+). Mutations at two sites are required, the "Ca(2+) bowl," which has been implicated previously in Ca(2+)(More)
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