Department of Computer Science, Virginia Tech, Blacksburg, USA.|Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, USA.|Department of Biological Sciences, Virginia Tech, Blacksburg, USA.|Department of Biology, Reed College, Portland, USA.|Department of Biological Sciences, Virginia Tech, Blacksburg, USA.|Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, USA.|Department of Computer Science, Virginia Tech, Blacksburg, USA.