1. Molecular Biophysics Graduate Program, Florida State University, Tallahassee, Florida 32306, Department of Pathology, University of Sydney, Sydney, NSW 2006, Australia, Institute of Organic and Medicinal Chemistry, University of Pecs, H-7643 Pecs, Hungary, and The National High Magnetic Field Laboratory, Institute of Molecular Biophysics, and Department of Biological Science, Florida State University, Tallahassee, Florida 32306