1. Department of Microbiology, The Ohio State University , Columbus , OH 43210, USA
2. Center for RNA Biology, The Ohio State University , Columbus , OH 43210, USA
3. Department of Physics, The Ohio State University , Columbus , OH 43210, USA
4. Department of Chemistry and Biochemistry, The Ohio State University , Columbus , OH 43210, USA
5. Division of Hematology, Department of Internal Medicine, The Ohio State University , Columbus, OH 43210, USA