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Schematic representation of the 3.9-kb BamHI and HindIII-digested embedded TEM-1b fragment (black arrow) and the promoter Pa/Pb (white rectangle). Truncated tnpA of Tn2 was placed on both sides of the resistance gene (gray). The sites for primers BamHI-P-F and BamHI-P-R for PCR clone are also indicated.
