1. University of Milan Via Golgi 19 20133 Milan Italy
2. Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC) Consiglio Nazionale delle Ricerche (CNR) Via Golgi 19 20133 Milan Italy
3. Department of Molecular Genetics German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE) Arthur-Scheunert-Allee 114–116 14558 Nuthetal Germany