1. Center for Computational Biology and Bioinformatics, Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana 46202, Computer Science and Engineering Department, University of California, Riverside, California, School of Informatics, Indiana University, Bloomington, Indiana, Indiana University−Purdue University, Indianapolis, Indiana, and Institute for Biological Instrumentation, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia