Energy-saving bacteria resist antibiotics
... tuberculosis also stops the enzyme DNA gyrase from working, which in turn stops DNA replication ... does not affect its ability to inhibit DNA gyrase and vice versa. DNA gyrase is involved in DNA replication, which happens ...Genetic adaptations key to microbe's survival in challenging environment
... to investigate the importance of one gene in N. profundicola . That gene, called rgy, allows the bacterium to manufacture a protein called reverse gyrase when it encounters extremely hot fluids from the Earth's interior. Previous studies found the gene only in microorganisms growing in temperatures ...Einstein researchers identify new way that bacteria develop resistance to antibiotics
... Until recently, this resistance was due entirely to mutations in DNA gyrase that prevent fluoroquinolones from binding to the complex formed by the ... than binding with DNA--and becoming a target for the fluoroquinolones--DNA gyrase instead binds with the DNA "mimic" MfpA, rendering the fluoroquinolones ...Trius Awarded $28 Million Contract to Develop Novel Antibiotics
... directed against multiple Gram-negative bacterial pathogens. Under the five-year contract, Trius will develop novel drugs targeting bacterial DNA gyrase and Topoisomerase IV, with the aim of optimizing these drugs for activity against relevant biodefense pathogens such as Yersinia pestis, ...