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Schematic comparison of the class 1 integron on pKGB525 with those on pTK1 (GenBank accession number AF156486), pLAP-1 (GenBank accession number AF326355), and pAK33 (34). Filled circles indicate the positions of GTTRRRY (core site) or the 59-base elements around the gene cassettes. pKGM525, which carries the 11.6-kb BamHI insert, was also sequenced; and the nucleotide sequence from intI1 to IS26 was the same as that found in pKGB525.
