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  • Title: Small molecule inhibitors of bacterial transcription complex formation.
    Author: Wenholz DS, Zeng M, Ma C, Mielczarek M, Yang X, Bhadbhade M, Black DSC, Lewis PJ, Griffith R, Kumar N.
    Journal: Bioorg Med Chem Lett; 2017 Sep 15; 27(18):4302-4308. PubMed ID: 28866270.
    Abstract:
    Knoevenagel condensation was employed to generate a set of molecules potentially capable of inhibiting the RNA polymerase-σ70/σA interaction in bacteria. Synthesis was achieved via reactions between a variety of indole-7-carbaldehydes and rhodanine, N-allylrhodanine, barbituric acid or thiobarbituric acid. A library of structurally diverse compounds was examined by enzyme-linked immunosorbent assay (ELISA) to assess the inhibition of the targeted protein-protein interaction. Inhibition of bacterial growth was also evaluated using Bacillus subtilis and Escherichia coli cultures. The structure-activity relationship studies demonstrated the significance of particular structural features of the synthesized molecules for RNA polymerase-σ70/σA interaction inhibition and antibacterial activity. Docking was investigated as an in silico method for the further development of the compounds.
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