1. Department
of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
2. Department
of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, United States
3. Biological
Sciences Division, Pacific Northwest National Laboratory, Richland 99352, Washington, United States
4. Signature
Sciences and Technology Division, Pacific Northwest National Laboratory, Richland 99352, Washington, United States