1. Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle/Saale, 06120, Germany
2. Department of Enzymology, Charles Tanford Protein Center, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle/Saale, 06120, Germany
3. Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Prumyslova 595, Vestec, 252 50, Czech Republic