1. Institute
for Organic Chemistry, Technical University Bergakademie Freiberg, Leipziger Straße 29, 09596 Freiberg, Germany
2. Department
of Microbiology, Cornell University, Ithaca, New York 14853, United States
3. Fachgebiet
Applied Biochemistry, Technische Universität Berlin, Gustav-Meyer-Allee
25, 13355 Berlin, Germany