1. Institute of Biotechnology RWTH Aachen University Worringerweg 3 52074 Aachen Germany
2. Beijing Bioprocess Key Laboratory Beijing University of Chemical Technology Beisanhuan East Road 15 Beijing 10029 P. R. China
3. Department of Bioorganic Chemistry Leibniz Institute of Plant Biochemistry Weinberg 3 06120 Halle Germany
4. DWI-Leibniz Institute for Interactive Materials Forckenbeckstraße 50 52074 Aachen Germany