Abstract
DNA from the Streptomyces plasmid pIJ702 was mutagenized in vitro using hydroxylamine and transformed into Streptomyces lividans. One plasmid with temperature-sensitive replication (pMT660) and one plasmid with a temperature-sensitive tyrosinase (pMT661) were isolated. The plasmid pMT661 contains a novel PstI restriction endonuclease site within the tyrosinase gene.
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