1. Department of Bionanotechnology, Hanyang University, Ansan, 15588, Korea
2. 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
3. Department of Life Sciences, Imperial College London, London, SW7 2AZ, United Kingdom
4. School of Life and Health Sciences, Kobilka Institute of Innovative Drug Discovery, Chinese University of Hong Kong, 2001 Longxiang Avenue, Shenzhen, Guangdong 518172, China
5. Department of Neuroscience, University of Copenhagen, Copenhagen, DK-2200, Denmark
6. Molecular and Cellular Physiology, Stanford University, Stanford, California 94305, United States