1. Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
2. Division of Mycobacterial Research, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, U.K.
3. Department of Chemical, Food, Pharmaceutical and Pharmacological Sciences (DiSCAFF), University of Piemonte Orientale “A. Avogadro”, Novara, Italy