Rectification and Rapid Activation at Low Ca²⁺ of Ca²⁺-Activated, Voltage-Dependent BK Currents: Consequences of Rapid Inactivation by a Novel β Subunit

This work was supported by National Institutes of Health Grant DK46564 to C.L. We thank Anne Benz and the C. Zorumski laboratory for providing us with oocytes and Jamie Thorp for technical assistance. We thank Ying-Wei Wang for results obtained with β2-Δ33 shown in Figure6D.

Correspondence should be addressed to Chris Lingle, Washington University School of Medicine, Department of Anesthesiology, Box 8054, St. Louis, MO 63110. E-mail: clingle{at}morpheus.wustl.edu.

Dr. Duan's present address: University of Science and Technology of China, School of Life Science, Department of Neurobiology and Biophysics, Hefei, Anhui 230027, China.