1. Friedrich Schiller University, 07745 Jena, Germany
2. Institute of Biotechnology and Drug Research, Erwin-Schroedinger-Strasse 56, 67663 Kaiserslautern, Germany
3. Johannes-Gutenberg-University Mainz, Institute of Biotechnology, Johann-Joachim-Becherweg 15, 55128 Mainz, Germany
4. BASF SE, 67056 Ludwigshafen, Germany