1. Graduate Program in Biochemistry & Structural Biology, Stony Brook University, Stony Brook, New York 11794-3400, United States
2. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
3. Department of Chemistry and Biochemistry, The City College of New York, New York, New York 10031, United States
4. Graduate Programs in Biochemistry, Chemistry and Physics, The Graduate Center of CUNY, New York, New York 10016, United States
5. Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, Missouri 63110, United States
6. Center for Science and Engineering of Living Systems, Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
7. Institute of Structural and Molecular Biology, University College London, Gower Street, London WC1E 6BT, United Kingdom