1. Center for Experimental BioInformatics, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Campusvej 55, DK-5230 Odense M, Denmark
2. Department of Proteomics and Signal Transduction, Max-Planck-Institute of Biochemistry, Munich, Am Klopferspitz 18, DE-82152 Martinsried, Germany