1. Centre for Bacterial Cell Biology, Institute for Cell and Molecular Biosciences, Medical School, Newcastle UniversityNewcastle upon Tyne UK
2. Department of Molecular GeneticsGroningen Biomolecular Sciences and Biotechnology Institute, University of GroningenGroningen The Netherlands
3. Lek Pharmaceuticals d.d.Menges Slovenia
4. Department of Cell Biology & PhysiologySwammerdam Institute for Life Sciences, University of AmsterdamAmsterdam The Netherlands