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. 2003 Apr 18;100(9):5455–5460. doi: 10.1073/pnas.0931379100

Figure 1.

Figure 1

(a) Schematic representation of the 5S-23S-16S components of the rRNA operon in C. burnetii. The intervening sequences (IVSs) located in the 23S rRNA gene are indicated. (b) Phylogenetic clustering of the C. burnetii group I intron endonuclease with other sequenced endonucleases. Amino acid sequences were aligned by using CLUSTALW, and a neighbor-joining tree was generated from the alignment by using the PAUP program. All nodes had bootstrap values >85%. The C. burnetii endonuclease clusters with intron-associated endonucleases from the mitochondrial genomes of Monomastix spp., Acanthamoeba castellani, and other single-celled eukaryote mitochondrial and chloroplast genomes.