Affiliation: | 1. Biochemistry Department, Section Electron Microscopy, State University of Utrecht, Transitorium 3, Padualaan 8, Utrecht The Netherlands;2. Institute of Molecular Biology, Section Electron Microscopy, State University of Utrecht, Transitorium 3, Padualaan 8, Utrecht The Netherlands;3. Department of Molecular Biology, Section Electron Microscopy, State University of Utrecht, Transitorium 3, Padualaan 8, Utrecht The Netherlands |