1. Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
2. Department of Biochemistry and Molecular Genetics, University of Colorado, Anschutz Medical Campus, Research-1S, Aurora, CO, USA
3. Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, USA
4. Howard Hughes Medical Institute, Yale University, New Haven, CT, USA
5. PTC Therapeutics, Inc, South Plainfield, NJ, USA
6. Department of Chemistry, Yale University, New Haven, CT, USA