1. Institute of Biophotonics, School of Biomedical Science and Engineering; National Yang-Ming University; Taipei; 112; Taiwan
2. Institute of Biochemistry, Charité-Universitätsmedizin; Virchowweg 6, 10117; Berlin; Germany
3. Institute of Structural Biochemistry (ICS-6), Research Center Jülich; Jülich; Germany