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. 2012 Mar;139(3):235–244. doi: 10.1085/jgp.201110748

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© 2012 Thompson and Begenisich

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Figure 4. — State-independent block of BK channels by TBA in Rb⁺ solutions. Pooled data. Voltage dependence of BK channel activation (■) and fraction of channels not blocked by TBA (○) in 100 µM Ca²⁺. Mean data shown with standard error limits if larger than symbol. Data from six to nine experiments, except n = 3 at −90 mV.