1. Institute for Biological Instrumentation of the Russian Academy of Sciences, Pushchino, Moscow Region, 142290 Russia, California Polytechnic State University, San Luis Obispo, California, 93407, Center for Computational Biology and Bioinformatics, Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana 46202, and Department of Chemistry and Biochemistry, University of Denver, 2190 E. Iliff Avenue, Denver, Colorado 80208-2436