David A Hiller1, Scott A Strobel2. 1. Department of Molecular Biophysics and Biochemistry and the Institute of Biomolecular Design and Discovery, Yale University, New Haven, CT, USA. 2. Department of Molecular Biophysics and Biochemistry and the Institute of Biomolecular Design and Discovery, Yale University, New Haven, CT, USA. scott.strobel@yale.edu.