1. Department
of Cell Physiology and Molecular Biophysics, Center for Membrane Protein
Research, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas 79430, United States
2. Department
of Theoretical Physics and Swedish e-Science Research Center, Science
for Life Laboratory, KTH Royal Institute of Technology, SE-171 21 Solna, Sweden
3. Department
of Physiology, University of California, Los Angeles, California 90095, United States
4. VIB
Center for Structural Biology Research, VIB, 1050 Brussel, Belgium
5. Structural
Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium