1. Institute
of Protein Biochemistry, National Research Council, 80131 Napoli, Italy
2. Institut Català de Nanotecnologia, Campus
of the UAB, 08193 Bellaterra, Spain
3. Flemish Institute for Technological Research, 2400 Mol, Belgium
4. Center
for Proteomics, University of Antwerp, 2020 Antwerp, Belgium
5. Vall d’Hebron Institute of Research (VHIR), 08035 Barcelona, Spain
6. Institut Català de Recerca i Estudis Avançats, ICREA, 08010 Barcelona, Spain