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. 2006 Sep;72(9):6070–6078. doi: 10.1128/AEM.00483-06

FIG. 4.

FIG. 4.

Sequence containing the putative transcriptional regulator and oxidoreductase genes of XCZ-3 (GenBank accession no. DQ087176). The dashed line represents the transcriptional regulator, and the solid line represents the oxidoreductase. The dark triangles pointing to specific nucleotides in boldface type show the location of each of the mutations. The shaded area shows the sequence that is homologous to MarR genes and that potentially contains a helix-turn-helix motif. The underlined codons in boldface type are possible alternative start sites that are in frame with the transcriptional regulator. Sites of primers used for amplification are also shown. Nucleotide and amino acid changes resulting from the mutations are as follows: 120-2, T→C and start codon→threonine; MutA, G→A and tryptophan→stop; MutB, MutC, and MutD, all G→A and glycine→aspartic acid. Changes in secondary structure are predicted only for MutB (NNPREDICT analysis).