1. Department of Physics, University of Gothenburg Gothenburg Sweden
2. Current addresses: Department of Chemistry, Stanford University, Stanford, California and Department of Biosciences and Nutrition, Karolinska Institutet Stockholm Sweden
3. Department of Biochemistry, Stellenbosch University Matieland South Africa
4. Molecular Cell Physiology, Vrije Universiteit Amsterdam The Netherlands
5. Manchester Centre for Integrative Systems Biology, Manchester Interdisciplinary Biocentre, The University of Manchester United Kingdom