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pubmed:abstractText |
Plasmid pBR322 was unable to replicate in a temperature-sensitive dnaT1 strain at a nonpermissive temperature, whereas a pBR322-derived plasmid carrying the wild-type dnaT+ gene was able to replicate under the same conditions. In contrast to pBR322, plasmid R1 could replicate in the dnaT1 strain at a nonpermissive temperature. In keeping with this finding, in vitro replication of plasmid R1 did not require DnaT protein.
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