Institution: | a Department of Cell & Applied Biology, Faculty of Science, Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlandsb Department of Molecular Pharmacology, Merck Research Laboratories, PO Box 20, 5340 BH Oss, The Netherlands |