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Map of the cloned EcoRI-BamHI fragment (pRS127) showing the site of insertion of the Ω interposon fragment with a kanamycin resistance gene derived from plasmid pHP45Ω (28) in K. pneumoniae fnr. The Ω interposon fragment is flanked by short inverted repeats, including strong transcription termination signals. The sequence of the EcoRI-BamHI fragment has been submitted to GenBank under accession no. F220669.
