Figure 6
From: The ESAT-6 gene cluster of Mycobacterium tuberculosis and other high G+C Gram-positive bacteria
Taxonomic position of the bacterial species that have the ESAT-6 gene clusters present in their genomes. This indicates that the ESAT-6 gene clusters seem to be a feature of only the high G+C Gram-positive bacteria (Actinobacteria) and that the presence of multiple copies of the gene clusters seems to be a characteristic only found in the mycobacteria. Phylogenetic relationships of members of the genus Mycobacterium indicated are based on 16S rRNA gene sequence information [56].