1. Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
2. Drug Discovery and Development Centre (H3D) South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch, Cape Town 7701, South Africa
3. Department of Microbiology and Immunology, Weill Cornell Medical College, New York, New York 10065, United States
4. Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
5. Department of Medicine (Hematology/Oncology), Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
6. VA Tennessee Valley Healthcare System, Nashville, Tennessee 37212, United States
7. Drug Discovery and Development Centre (H3D), Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Observatory, Cape Town, 7935, South Africa