1. Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
2. Curriculum in Genetic and Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
3. Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
4. Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States