1. Department of Molecular Biophysics and Biochemistry and Howard Hughes Medical Institute; Yale University; New Haven CT 06520
2. Department of Molecular Biophysics and Biochemistry; Yale University; New Haven CT 06520
3. Department of Chemistry and Department of Molecular Biophysics and Biochemistry; Yale University; New Haven CT 06520
4. Department of Molecular Biophysics and Biochemistry, Howard Hughes Medical Institute, and Department of Chemistry; Yale University; New Haven CT 06520