1. Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
2. Roy J Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
3. Aptalogic Inc., Ames, Iowa 50014, United States
4. Department of Biological Sciences, Middle East Technical University, Ankara, Ankara 06800, Turkey