Affiliation: | (1) Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 20892 Bethesda, Maryland, USA;(2) Laboratory of Cell Biology and Genetics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Building 8, Room 405, 9000 Rockville Pike, 20892 Bethesda, Maryland, USA |