Query: NC_000963:1024000 Rickettsia prowazekii str. Madrid E, complete genome Lineage: Rickettsia prowazekii; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria General Information: This strain is an egg-passaged attentuated avirulent strain that has been used as a live vaccine and was originally isolated from a typhus patient in Madrid. This species is the causal agent of typhus. The bacteria are transmitted via an insect, usually a tick, to a host organism, in this case humans, where they target endothelial cells and sometimes macrophages. They attach via an adhesin, rickettsial outer membrane protein A, and are internalized where they persist as cytoplasmically free organisms. Transovarial transmission (from mother to offspring) occurs in the invertebrate host.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
General Information: Isolated from a patient in New York, USA, in 1995. This organism is a tick-borne (Ixodesspp.) obligate intracellular pathogen that infects humans and causes human granulocytic anaplasmosis as well as infecting several other types of animals. This organism produces a number of pathogenic factors that aid virulence. These include specific adhesins for neutrophils, virulence factors that inhibit both phagosome-lysozome fusion and production of reactive oxygen species that would normally kill the bacterium. The bacterium also inhibits programmed cell death of the neutrophil (apoptosis) and induces expression of interleukin-8, which causes neutrophil chemotaxis, thereby increasing the spread of the bacterium throughout the host organism.