Institute for Physical Sciences and Technology, University of Maryland, College Park, MD 20742, USA, Center for Computational Biology, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA, Department of Mathematics and Department of Physics, University of Maryland, College Park, MD 20742, USA.|Institute for Physical Sciences and Technology, University of Maryland, College Park, MD 20742, USA, Center for Computational Biology, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA, Department of Mathematics and Department of Physics, University of Maryland, College Park, MD 20742, USA.|Institute for Physical Sciences and Technology, University of Maryland, College Park, MD 20742, USA, Center for Computational Biology, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA, Department of Mathematics and Department of Physics, University of Maryland, College Park, MD 20742, USA.|Institute for Physical Sciences and Technology, University of Maryland, College Park, MD 20742, USA, Center for Computational Biology, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA, Department of Mathematics and Department of Physics, University of Maryland, College Park, MD 20742, USA.|Institute for Physical Sciences and Technology, University of Maryland, College Park, MD 20742, USA, Center for Computational Biology, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA, Department of Mathematics and Department of Physics, University of Maryland, College Park, MD 20742, USA.|Institute for Physical Sciences and Technology, University of Maryland, College Park, MD 20742, USA, Center for Computational Biology, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA, Department of Mathematics and Department of Physics, University of Maryland, College Park, MD 20742, USA.