J Garcia-Bernardo

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Mithramycin is an antitumor aromatic polyketide synthesized by Streptomyces argillaceus. Two genes (mtrX and mtrY) of the mithramycin gene cluster were inactivated by gene replacement. Inactivation of mtrX, that encodes an ABC excision nuclease system for DNA repair, produced a mutant that was affected in the normal rate of growth. Expression of mtrX in(More)
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