1. Biological Chemistry Group, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE Leiden, Netherlands
2. Molecular Biotechnology Group, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE Leiden, Netherlands
3. Bioinformatics Group, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands
4. BioVersys AG, c/o Technologiepark, Hochbergerstrasse 60c, CH-4057 Basel, Switzerland