gyrase उदाहरण वाक्य
उदाहरण वाक्य
- It also inhibits the nicking-closing activity on the subunit of DNA gyrase that releases the positive binding stress on the supercoiled DNA.
- Topoisomerases such as DNA gyrase ( Type II Topoisomerase ) play a role in relieving some of the stress during DNA / RNA synthesis.
- DNA gyrase preliminary role is to introduce negative super coils into DNA, thereby relaxing positive supercoils that come into play during DNA replication.
- The target of CcdB is the GyrA subunit of DNA gyrase, an essential type II topoisomerase in " Escherichia coli ".
- For many gram-negative bacteria, DNA gyrase is the target, whereas topoisomerase IV is the target for many gram-positive bacteria.
- Finally, mutations at key sites in DNA gyrase or topoisomerase IV can decrease their binding affinity to quinolones, decreasing the drugs'effectiveness.
- In addition, drug-resistant bacteria often have a point mutation in gyrase ( Serine79Alanine in E . coli ) that renders quinolones ineffective.
- Other mechanisms include de novo synthesis of a coumarin-resistant gyrase B subunit by the novobiocin producer " S . sphaeroides ".
- For many Gram-negative bacteria, DNA gyrase is the target, whereas topoisomerase IV is the target for many Gram-positive bacteria.
- Finally, mutations at key sites in DNA gyrase or topoisomerase IV can decrease their binding affinity to quinolones, decreasing the drug's effectiveness.