1. Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, Barcelona 08195, Spain
2. Department of Structural and Molecular Biology, Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC), Barcelona Science Park, Baldiri Reixac 15-21, Barcelona 08028, Spain