1. Department of Cell and Molecular Biology, College of the Environment and Life Sciences, University of Rhode Island, Kingston, Rhode Island, USA
2. Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, USA
3. Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA
4. Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA