1. School of Molecular and Cellular Biology, Faculty of Biological Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, LS2 9JT, UK
2. Present address: São Paulo State University, Institute of Biosciences, Languages and Exact Sciences, Cristóvão Colombo Street, 2265, Post Code 15054-000, São José do Rio Preto, São Paulo State, Brazil
3. Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen N, Denmark
4. Copenhagen Hepatitis C Program (CO-HEP), Department of Infectious Diseases, Hvidovre Hospital, Kettegård Allé 30, DK-2650 Hvidovre, Denmark