Institution: | From the ‡Department of Medical Protein Research, VIB, B-9000 Ghent, Belgium; ;§Department of Biochemistry, Ghent University, B-9000 Ghent, Belgium; ;¶Institute for Biotechnology and Biomedicine and Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain |