1. Department of Chemistry, University of Florida, Gainesville, Florida 32611,
United States
2. Laboratory
of Computational
Chemistry and Biochemistry, Ecole Polytechnique Fédérale Lausanne, CH-1015 Lausanne, Switzerland
3. Departments of Biochemistry and
Chemistry, Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801,
United States
4. Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx,
New York 10461, United States