1. Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York12180, United States
2. Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York12180, United States
3. Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York14853, United States
4. Graduate Program in Biochemistry and Biophysics, Rensselaer Polytechnic Institute, Troy, New York12180, United States
5. Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York12180, United States