1. Departments of Biological Chemistry, Medicine, Pediatrics, and Physiology, Johns Hopkins School of Medicine, Baltimore, MD, USA
2. Department of Anatomy, Institute of Basic Medical Sciences, University of Oslo, Norway
3. Department of Biophysics, Faculty of Science, Kyoto University, Japan
4. M. E. Müller‐Institute for Microscopy at the Biozentrum, University of Basel, Switzerland
5. The Water and Salt Research Center, University of Aarhus, Denmark