1. Clostridia Research Group, Centre for Biomolecular Sciences, School of Life Sciences, The University of Nottingham, University Park, Nottingham, UK
2. Present address: Centre for Synthetic Biology and Innovation, Department of Life Sciences, Imperial College London, London, UK
3. Maastro Lab, Research Institute GROW, University of Maastricht, MD Maastricht, The Netherlands
4. Molecular Bacteriology, Rega Institute for Medical Research, University Leuven, Minderbroedersstraat,Belgium
5. Morvus Technology Limited, Ty Myddfai, Llanarthne, Carmarthen, UK