1. Institute for Biochemistry and Biotechnology/Technical Biochemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Straße 3, D-06120 Halle (Saale), Germany
2. Scil Proteins GmbH, Heinrich-Damerow-Straße 1, D-06120 Halle (Saale), Germany
3. Institute of Biochemistry, University of Leipzig, Brüderstraße 34, D-04103 Leipzig, Germany