Department of Microbiology, New York University School of Medicine, New York, NY, USA.|European Bioinformatics Institute (EMBL-EBI), Hinxton, UK.|Department of Parasites and Microbes, Wellcome Sanger Institute, Hinxton, UK.|Department of Microbiology, New York University School of Medicine, New York, NY, USA.|Department of Parasites and Microbes, Wellcome Sanger Institute, Hinxton, UK.