1. Department of Physics, The Ohio State University, Columbus, OH 43210, USA
2. Center for RNA Biology, The Ohio State University, Columbus, OH 43210, USA
3. Department of Microbiology, The Ohio State University, Columbus, OH 43210, USA
4. Ohio State Biochemistry Program, The Ohio State University, Columbus, OH 43210, USA
5. Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
6. Department of Chemistry and Biochemistry, Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA