1. Department of Microbial Pathogenesis and Microbial Sciences Institute, Yale University School of Medicine, New Haven, Connecticut, USA
2. Biosciences Institute, The Medical School, Newcastle University, Newcastle upon Tyne, United Kingdom
3. Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, USA
4. The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington, USA
5. W. M. Keck Biotechnology Resource Laboratory, Yale University School of Medicine, New Haven, USA