4hdc

Publication Abstract from PubMed

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 ug/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.

Discovery of Selective and Potent Inhibitors of Gram-positive Bacterial Thymidylate Kinase (TMK).,Martinez-Botella G, Breen JN, Duffy JE, Dumas J, Geng B, Gowers IK, Green OM, Guler S, Hentemann MF, Hernandez-Juan FA, Joseph-McCarthy D, Kawatkar SP, Larsen NA, Lazari O, Loch JT, Macritchie JA, McKenzie AR, Newman JV, Olivier NB, Otterson LG, Owens AP, Read J, Sheppard DW, Keating TA J Med Chem. 2012 Oct 8. PMID:23043329^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.