1. Institute for Protein Design, University of Washington, Seattle, WA 98195, USA.
2. Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.
3. Molecular Engineering Ph.D. Program, University of Washington, Seattle, WA 98195, USA.
4. Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06511, USA.
5. Microbial Sciences Institute, Yale University, West Haven, CT 06516, USA.
6. Howard Hughes Medical Institute, Yale University, West Haven, CT 06516, USA.
7. Department of Physiology and Biophysics, University of Washington, Seattle, WA 98195, USA.
8. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA.
9. Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
10. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
11. Department of Bioengineering, University of Washington, Seattle, WA 98195, USA.
12. Department of Microbial Pathogenesis, Yale School of Medicine, New Haven, CT 06510, USA.
13. Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA.