1 Division of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan.
2 Division of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; Faculty of Liberal Arts, Sophia University, Tokyo, Japan.
3 First Medical Faculty at Biocev, Charles University, Prague, Czechia; Departamento de Farmacia, Facultad de Ciencias de la Salud, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain.
4 Division of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; Graduate School of Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan.
5 Division of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan.
6 Division of Vaccine Science, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan.
7 First Medical Faculty at Biocev, Charles University, Prague, Czechia.
8 Division of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan.
9 Division of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; Graduate School of Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 113-8654, Japan; Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan; Collaboration Unit for Infection, Joint Research Center for Human Retrovirus infection, Kumamoto University, Kumamoto, Japan; CREST, Japan Science and Technology Agency, Kawaguchi, Japan. Electronic address: keisato@g.ecc.u-tokyo.ac.jp.