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DNA gyráza

  1. Subject h.DNA gyráza
    Subject h.DNA Gyrase
    Entry termsDNA gyráza, A podjednotka
    DNA gyráza, A subjednotka
    DNA gyráza, B podjednotka
    DNA gyráza, B subjednotka
    English X referencesDNA Gyrase A Subunit
    DNA Gyrase B Subunit
    Scope note in EnglishA bacterial DNA topoisomerase II that catalyzes ATP-dependent breakage of both strands of DNA, passage of the unbroken strands through the breaks, and rejoining of the broken strands. Gyrase binds to DNA as a heterotetramer consisting of two A and two B subunits. In the presence of ATP, gyrase is able to convert the relaxed circular DNA duplex into a superhelix. In the absence of ATP, supercoiled DNA is relaxed by DNA gyrase.
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