Deibel MR, Bodnar AL, Yem AW, Wolfe CL, Heckaman CL, Bohanon MJ, Mathews WR, Sweeney MT, Zurenko GE, Marotti KR, Boyle TP, Thorarensen A. Immobilization of a Novel Antibacterial Agent on Solid Phase and Subsequent Isolation of EF-Tu.
Bioconjug Chem 2004;
15:333-43. [PMID:
15025529 DOI:
10.1021/bc034060g]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Screening of our compound collection identified PNU-92560, a 2-[1,3,4]thiadiazolo[3,2-a]pyrimidine-6-carboxamide, as a novel antibacterial agent. Extensive analogue development identified that the 2-position of the thiadiazole could be functionalized with a linker that would allow the compound to be attached to a solid support. The extreme insolubility of the analogues prevented the mechanism of action for these compounds to be determined utilizing traditional methodology. The solid-supported compounds were utilized as affinity columns to identify elongation factor Tu (EF-Tu) as a putative target for this class of compounds. The activity of the compounds in a metabolic labeling experiments and in translation assay supports the identity of the target for these compounds to be EF-Tu.
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