Rank: Species
Lineage: Bacteria;Proteobacteria;Alphaproteobacteria;Rickettsiales;Rickettsiaceae;Rickettsia;Rickettsia conorii
Description: This organism causes Rocky Mountain spotted fever which can cause severe damage to the endothelial layer of major organs, including the lungs, heart, kidneys, and skeletal muscle which can result in death. The bacterium can move intra- and intercellularly via actin polymerization, unlike Rickettsia prowazekii. The agent responsible for this, an outer membrane protein, RickA, that promotes actin polymerization, was identified by comparison of the two genomes of Rickettsia conorii and Rickettsia prowazekii.
Reference Material:
https://www.ncbi.nlm.nih.gov/genome/?term=Rickettsia%20conorii