Download MendeleyDiscovery of Selective and Potent Inhibitors of Gram-Positive Bacterial Thymidylate Kinase (TMK).
Martinez-Botella, G., Breen, J.N., Duffy, J.E., Dumas, J., Geng, B., Gowers, I.K., Green, O.M., Guler, S., Hentemann, M.F., Hernandez-Juan, F.A., Joseph-McCarthy, D., Kawatkar, S., Larsen, N.A., Lazari, O., Loch, J.T., Macritchie, J.A., McKenzie, A.R., Newman, J.V., Olivier, N.B., Otterson, L.G., Owens, A.P., Read, J., Sheppard, D.W., Keating, T.A.(2012) J Med Chem 55: 10010-10021
- PubMed: 23043329
- DOI: https://doi.org/10.1021/jm3011806
- Primary Citation of Related Structures:
4GSY, 4HDC, 4HEJ - PubMed Abstract:
Thymidylate kinase (TMK) is an essential enzyme in bacterial DNA synthesis. The deoxythymidine monophosphate (dTMP) substrate binding pocket was targeted in a rational-design, structure-supported effort, yielding a unique series of antibacterial agents showing a novel, induced-fit binding mode. Lead optimization, aided by X-ray crystallography, led to picomolar inhibitors of both Streptococcus pneumoniae and Staphylococcus aureus TMK. MICs < 1 μg/mL were achieved against methicillin-resistant S. aureus (MRSA), S. pneumoniae, and vancomycin-resistant Enterococcus (VRE). Log D adjustments yielded single diastereomers 14 (TK-666) and 46, showing a broad antibacterial spectrum against Gram-positive bacteria and excellent selectivity against the human thymidylate kinase ortholog.
Organizational Affiliation:
AstraZeneca Infection Innovative Medicines, 35 Gatehouse Drive, Waltham, Massachusetts 02451, USA. gabriel@sagerx.com
