1. Institutfür Pharmazeutische Biologie und Biotechnologie, Heinrich-Heine Universität, Geb. 26.23, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
2. Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street 1, 11566 Cairo, Egypt
3. Laboratoire Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS, Museum National d'Histoire Naturelle, Paris, France
4. Naturalis Biodiversity Center, PO Box 9517 2300, RA Leiden, Netherlands
5. Centre National de la Recherche Scientifique, Protein Phosphorylation & Human Disease Group, Station Biologique, F-29680 Roscoff, France
6. Man Ros Therapeutics, Centre de Perharidy, F-29680 Roscoff, France
7. Institute for Physiological Chemistry, University of Medical Center of the Johannes-Gutenberg-University Mainz, Duesbergweg 6, D-55128 Mainz, Germany