1. Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, USA
2. Infection and Immunity Program, Biomedicine Discovery Institute, Department of Microbiology, Monash University, Clayton, Victoria, Australia
3. Department of Cardiology, University of Kentucky, Lexington, Kentucky, USA
4. Department of Molecular and Cellular Biochemistry and Center for Structural Biology, University of Kentucky, Lexington, Kentucky, USA