1. Department of Chemistry University of Warwick Coventry CV4 7AL UK
2. Warwick Integrative Synthetic Biology Centre University of Warwick Coventry CV4 7AL UK
3. Current Address: The Centre for Bacterial Cell Biology, Biosciences Institute Medical School Newcastle University Newcastle upon Tyne NE2 4AX UK
4. Institute of Clinical Sciences School of Pharmacy University of Birmingham Birmingham B15 2TT UK
5. Current Address: Laboratory for Biomolecular Discovery &, Engineering VIB-KU Leuven Center for Microbiology Department of Biology KU Leuven 3001 Leuven Belgium
6. Organisms and Environment Division Cardiff School of Biosciences Cardiff University Cardiff CF10 3AT UK
7. Department of Biochemistry and Molecular Biology ARC Centre of Excellence for Innovations in Peptide and Protein Science Monash University Victoria 3800 Australia