1. Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
2. Centre
for Synthetic Biology of Fine and Specialty Chemicals (SYNBIOCHEM),
Manchester Institute of Biotechnology, Faculty of Life Sciences, University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
3. Laboratory
of Mycobacterial Metabolism and Antibiotic Research, Francis Crick
Institute, The Mill Hill Laboratory, London NW7 1AA, U.K.
4. School
of Pharmaceutical Sciences, São Paulo State University (UNESP), 4801-902 Araraquara, SP, Brazil
5. Department
of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA U.K.