Query: NC_013515:550464 Streptobacillus moniliformis DSM 12112, complete genome Lineage: Streptobacillus moniliformis; Streptobacillus; Leptotrichiaceae; Fusobacteriales; Fusobacteria; Bacteria General Information: Isolation: Patient with rat-bite fever in France; Temp: Mesophile; Temp: 37C; Habitat: Host. Streptobacillus moniliformis causes rat bite fever, a systemic illness characterized by fever, chills, and joint pain which can progress to endocarditis, meningitis or pneumonia if left untreated. Although infection is usually associated with a rodent bite, this disease can be caused by ingestion of contaminated food or water. Streptobacillus moniliformis is the causative agent of rat bite fever in North and South America while a different organism, Spirillum minus, is primarily responsible for this disease in Asia and other countries.
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General Information: This genus, like other Rickettsial organisms such as Neorickettsia and Anaplasma, is composed of obligate intracellular pathogens. The latter is composed of two organisms, Rickettsia prowazekii and Rickettsia typhi. 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. Rickettsia typhi causes murine typhus and is an obligate intracellular pathogen that infects both the flea vector and hosts such as human, rat, and mouse. In the flea vector, the bacterium penetrates the gut epithelial barrier and is found in the feces which become infective.