FIG. 2.

Nucleotide sequence and translated polypeptide of dfrXV. The sequence used as a gene probe is printed in boldface type. The gene cassette boundaries are marked (↑), and the imperfect inverted repeat (59-base element) is underlined (interrupted lines); gaps indicate mismatched bases, asterisks denote extra bases in the left half of the element which interrupt the inverted repeat, and arrows (---›) denote the direction of symmetry. The putative promoter sequences of the conserved element are underlined, and the start codon of intI1 is in italics.