Abstract: The subject invention provides fluorophore-quencher nucleic acid molecules comprising relaxed or supercoiled DNA molecules, and their use in rapid and efficient high-throughput screening (HTS) assays to screen and identify compounds that inhibit DNA gyrases. These compounds can be used as antibiotics for treating bacterial infections, especially, multidrug resistant bacterial infections.

Abstract: The present invention provides assays and methods for studying DNA topology and topoisomerases. The assays and methods utilize a circular plasmid DNA comprising one or more hairpin structures and the ability of T5 exonuclease (T5E) to digest the circular plasmid DNA in a specific configuration. The assays and methods can be used as a high throughput screening for inhibitors of, for example, DNA gyrases and DNA topoisomerases I for anticancer drug and antibiotics discovery.

Abstract: The subject invention provides fluorophore-quencher nucleic acid molecules comprising relaxed or supercoiled DNA molecules, and their use in rapid and efficient high-throughput screening (HTS) assays to screen and identify compounds that inhibit DNA gyrases. These compounds can be used as antibiotics for treating bacterial infections, especially, multidrug resistant bacterial infections.

Abstract: The disclosure describes the effects of transcription mediated from a promoter on the transcription mediated by divergently coupled supercoiling-sensitive promoter. Transcription initiated from a promoter inhibits transcription mediated by a specific supercoiling-sensitive promoter that is divergently coupled to the promoter. A gyrase inhibitor relieves this inhibition and substantially increases the transcription mediated by the specific supercoiling-sensitive promoter that is divergently coupled to another promoter. Accordingly, the invention pertains to a method for identifying a compound as a gyrase inhibitor or not a gyrase inhibitor based on differential expression of genes under the control of divergently coupled promoters in the presence of the compound. Another embodiment of the invention provides an assay for identifying one or more compounds from a library of compounds as a gyrase inhibitor.

Abstract: The present invention provides assays and methods for studying DNA topology and topoisomerases. The assays and methods utilize a circular plasmid DNA comprising one or more hairpin structures and the ability of T5 exonuclease (T5E) to digest the circular plasmid DNA in a specific configuration. The assays and methods can be used as a high throughput screening for inhibitors of, for example, DNA gyrases and DNA topoisomerases I for anticancer drug and antibiotics discovery.

Abstract: The present invention provides assays and methods for studying DNA topology and topoisomerases. The assays and methods utilize a circular plasmid DNA comprising one or more hairpin structures and the ability of T5 exonuclease (T5E) to digest the circular plasmid DNA in a specific configuration. The assays and methods can be used as a high throughput screening for inhibitors of, for example, DNA gyrases and DNA topoisomerases I for anticancer drug and antibiotics discovery.

Abstract: The present invention provides assays and methods for studying DNA topology and topoisomerases. The assays and methods utilize a circular plasmid DNA comprising one or more hairpin structures and the ability of T5 exonuclease (T5E) to digest the circular plasmid DNA in a specific configuration. The assays and methods can be used as a high throughput screening for inhibitors of, for example, DNA gyrases and DNA topoisomerases I for anticancer drug and antibiotics discovery.

Abstract: The present invention provides assays and methods for studying DNA topology and topoisomerases. The assays and methods utilize a circular plasmid DNA comprising one or more hairpin structures and the ability of T5 exonuclease (T5E) to digest the circular plasmid DNA in a specific configuration. The assays and methods can be used as a high throughput screening for inhibitors of, for example, DNA gyrases and DNA topoisomerases I for anticancer drug and antibiotics discovery.

Abstract: The present invention provides labeled circular plasmid DNA molecules for studying DNA topology and topoisomerases. The molecules of the present invention also provide tools for high throughput drug screening for inhibitors of DNA gyrases and DNA topoisomerases for anticancer drug discovery and antibiotics discovery.

Abstract: The disclosure describes the effects of transcription mediated from a promoter on the transcription mediated by divergently coupled supercoiling-sensitive promoter. Transcription initiated from a promoter inhibits transcription mediated by a specific supercoiling-sensitive promoter that is divergently coupled to the promoter. A gyrase inhibitor relieves this inhibition and substantially increases the transcription mediated by the specific supercoiling-sensitive promoter that is divergently coupled to another promoter. Accordingly, the invention pertains to a method for identifying a compound as a gyrase inhibitor or not a gyrase inhibitor based on differential expression of genes under the control of divergently coupled promoters in the presence of the compound. Another embodiment of the invention provides an assay for identifying one or more compounds from a library of compounds as a gyrase inhibitor.

Abstract: The disclosure describes the effects of transcription mediated from a promoter on the transcription mediated by divergently coupled supercoiling-sensitive promoter. Transcription initiated from a promoter inhibits transcription mediated by a specific supercoiling-sensitive promoter that is divergently coupled to the promoter. A gyrase inhibitor relieves this inhibition and substantially increases the transcription mediated by the specific supercoiling-sensitive promoter that is divergently coupled to another promoter. Accordingly, the invention pertains to a method for identifying a compound as a gyrase inhibitor or not a gyrase inhibitor based on differential expression of genes under the control of divergently coupled promoters in the presence of the compound. Another embodiment of the invention provides an assay for identifying one or more compounds from a library of compounds as a gyrase inhibitor.

Abstract: The present invention provides labeled circular plasmid DNA molecules for studying DNA topology and topoisomerases. The molecules of the present invention also provide tools for high throughput drug screening for inhibitors of DNA gyrases and DNA topoisomerases for anticancer drug discovery and antibiotics discovery.

Abstract: The present invention provides novel bisbenzimidazole compounds and methods of using the compounds as antibacterial agents.

Abstract: The disclosure describes the effects of transcription mediated from a promoter on the transcription mediated by divergently coupled supercoiling-sensitive promoter. Transcription initiated from a promoter inhibits transcription mediated by a specific supercoiling-sensitive promoter that is divergently coupled to the promoter. A gyrase inhibitor relieves this inhibition and substantially increases the transcription mediated by the specific supercoiling-sensitive promoter that is divergently coupled to another promoter. Accordingly, the invention pertains to a method for identifying a compound as a gyrase inhibitor or not a gyrase inhibitor based on differential expression of genes under the control of divergently coupled promoters in the presence of the compound. Another embodiment of the invention provides an assay for identifying one or more compounds from a library of compounds as a gyrase inhibitor.

Abstract: The present invention provides labeled circular plasmid DNA molecules for studying DNA topology and topoisomerases. The molecules of the present invention also provide tools for high throughput drug screening for inhibitors of DNA gyrases and DNA topoisomerases for anticancer drug discovery and antibiotics discovery.

Abstract: The present invention provides labeled circular plasmid DNA molecules for studying DNA topology and topoisomerases. The molecules of the present invention also provide tools for high throughput drug screening for inhibitors of DNA gyrases and DNA topoisomerases for anticancer drug discovery and antibiotics discovery.

Abstract: The present invention provides novel bisbenzimidazole compounds and methods of using the compounds as antibacterial agents.

Abstract: The present invention provides methods of screening compounds that inhibit or enable or activate or enhance the sequence-specific or nonspecific binding of a polynucleotide binding protein to a polynucleotide fragment. Also provided are enzyme linked immunosorbent assay (ELISA) kits for screening for compounds that inhibit or enable, activate, or enhance the sequence-specific or nonspecific binding of a polynucleotide binding protein.