Department of Molecular Biosciences and Center for Computational Biology, University of Kansas, Lawrence, KS 66047, USA.|Department of Molecular Biosciences and Center for Computational Biology, University of Kansas, Lawrence, KS 66047, USA.|Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA.|School of Computational Sciences and Center for In Silico Protein Science, Korea Institute for Advanced Study, Seoul 130-722, Korea and.|Center for the Study of Systems Biology, School of Biology, Georgia Institute of Technology, Atlanta, GA 30076, USA.|School of Computational Sciences and Center for In Silico Protein Science, Korea Institute for Advanced Study, Seoul 130-722, Korea and.|Department of Molecular Biosciences and Center for Computational Biology, University of Kansas, Lawrence, KS 66047, USA.