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Restriction map of the inserts of pRER5, pRER7, and pRER61 carrying 7,240 bp of R. opacus 1CP DNA in the multiple cloning site of pBluescript II KS (+). The lengths and orientations of open reading frames are indicated by large arrows. Two small arrows indicate the locations of the imperfect inverted repeats. Between the presumed clcR and clcA was found a hairpin structure that possibly represents a transcription terminator.
