1. Department
of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
2. Renal
Division, Washington University Medical School, 660 South Euclid
Avenue, St. Louis, Missouri 63110, United States
3. Center
for Investigation of Membrane Excitability Diseases, Washington University Medical School, 660 South Euclid Avenue, St. Louis, Missouri 63110, United States