Topoisomerase
Topoisomerases are enzymes that participate in the overwinding or underwinding of DNA. During DNA replication and transcription, DNA becomes overwound ahead of a replication fork. If left unabated, this torsion would eventually stop the ability of DNA or RNA polymerases involved in these processes to continue down the DNA strand.Topoisomerases are isomerase enzymes that act on the topology of DNA.Bacterial topoisomerase and human topoisomerase proceed via the same mechanism for replication and transcription.
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Levofloxacin hydrate is an antibacterial agent that inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication.
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Nitroxoline is an effective anti-microbial and anti-cancer agent.
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Flumequine is a synthetic chemotherapeutic antibiotic, inhibiting topoisomerase II with IC50 of 15 μM.
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Nalidixic acid(NegGram) is a synthetic 1,8-naphthyridine antimicrobial agent with a limited bacteriocidal spectrum. It is an inhibitor of the A subunit of bacterial DNA gyrase.
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Balofloxacin is quinolone antibiotic, inhibiting the synthesis of bacterial DNA by interference with the enqyme DNA gyrase.
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