1. Department of Chemistry University of Nebraska–Lincoln Lincoln NE 68588 USA
2. Department of Chemistry and Physics Southeast Missouri State University Cape Girardeau MO 63701 USA
3. Department of Chemistry University of Virginia Charlottesville VA 22904 USA
4. Department of Biochemistry University of Nebraska–Lincoln Lincoln NE 68588 USA
5. Nebraska Center for Integrated Biomolecular Communication University of Nebraska–Lincoln Lincoln NE 68588 USA
6. Cancer Genes and Molecular Regulation Program Fred & Pamela Buffet Cancer Center University of Nebraska Medical Center Omaha NE 68198 USA
7. University of Virginia Cancer Center University of Virginia Charlottesville VA 22904 USA