Genomic locales of sodN and sodT. (A) A comparison of the genomic locations where sodB and sodN are found in WH7803 and WH8102, respectively, as well as the nucleotide sequence identities (nt sequence id.) of flanking genes. Also shown are the sodN::sodB and sodT::sodB lines developed for this study. The short extension at the N terminus of the sodB sequence indicates the 75 bp upstream of this gene in WH7803. Note that Kanr is also inserted into the indicated site along with sodB but is not shown here for clarity. (B) The predicted locations of transmembrane domains in sodT using TMHMM (27). (C) The sequences of the intracellular loop found between transmembrane helices 3 and 4 in WH8102, CC9902, CC9605, and CC9311.