1. Department
of Chemical and Biomolecular Engineering, Rice University, Houston, Texas, United States
2. Sealy
Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, Texas, United States
3. Structural
and Computational Biology and Molecular Biophysics, Baylor College of Medicine, Houston, Texas, United States
4. Chemical
and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, United States