1. Ohio State Biochemistry Program, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210, USA
2. Department of Biological Chemistry and Pharmacology, The Ohio State University, 1060 Carmack Road, Columbus, OH 43210, USA
3. Department of Systems Biology, Harvard Medical School, Cambridge, MA 02138, USA
4. Department of Genetics, Harvard Medical School, Cambridge, MA 02138, USA
5. Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210, USA
6. Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA