Department of Microbiology, Computational Genomics Group, University of Washington, Seattle, Washington, United States of America.|Department of Microbiology, Computational Genomics Group, University of Washington, Seattle, Washington, United States of America.|Department of Microbiology, Computational Genomics Group, University of Washington, Seattle, Washington, United States of America.|Department of Microbiology, Computational Genomics Group, University of Washington, Seattle, Washington, United States of America.|Department of Microbiology, Computational Genomics Group, University of Washington, Seattle, Washington, United States of America.