FIG. 2.
Schematic of RD genes in H. pylori strains 26695, J99, HPAG1, and G27. The conserved 3′ region found in all RD genes is indicated in lilac, the two types of FARs are indicated in red (FAR1) and green (FAR2), and the variable mid-region is indicated in blue. Flanking genes with homology to one another are indicated by color: turquoise (HP_0117 and homologs), light green (HP_0121 and homologs), purple (HP_1186 and homologs), and yellow (HP_1189 and homologs).