Fig 3.

chxA leader gene sequence alignment for the strains with nucleotide repeat insertion. One chxA leader gene sequence from chxA I and chxA II, along with the published prototype sequence (AY876053), is shown here for comparison. All the chxA I leader gene sequences are conserved. The chxA II leader sequences from 5 strains have insertions of single or 3 copies of octamer repeats, and all 4 chxA III also have insertions of single copies of nearly identical octamers. The bold characters show the termination codon; *, initiation codon in the prototype sequence; **, proposed initiation codon with probable ribosome binding site (RBS). Matching amino acids are indicated by dots and deleted ones by dashes.