1. Program in Molecular Biophysics, Wesleyan University, Middletown, CT, USA;
2. Department of Molecular Biology & Biochemistry, Wesleyan University, Middletown, CT, USA;
3. Chemistry Department, Wesleyan University, Middletown, CT, USA;
4. Department of Mathematics and Computer Science, Wesleyan University, Middletown, CT, USA