Query: NC_010167:1085106 Brucella suis ATCC 23445 chromosome II, complete sequence Lineage: Brucella suis; Brucella; Brucellaceae; Rhizobiales; Proteobacteria; Bacteria General Information: This organism is a swine-specific Brucella. It causes infectious abortions in animals and a systemic, febrile (feverish) illness in humans. Human infection usually occurs by accidental contact with infected animals or by ingestion of contaminated food. Brucella suis is considered a potential bioterrorism agent and was the first pathogenic organism to be weaponized by the USA.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
General Information: This strain is found in the cedar aphid, Cinara cedri. Aphid endosymbiont. Almost all aphids contain maternally transmitted bacteriocyte cells, which themselves contain bacteria called Buchnera. The aphids live on a restricted diet (plant sap), rich in carbohydrates, but poor in nitrogenous or other essential compounds. It is believed that the Buchnera provide the essential nutrients the host lacks. Besides a nutritional co-dependence, due to a co-existence of millions of years, Buchnera have lost the ability to produce cell surface components such as lipopolysaccharides. This makes for an obligate endosymbiont relationship between host and Buchnera. Buchnera are prokaryotic cells which belong to the gamma-Proteobacteria, closely related to the Enterobacteriaceae family. Phylogenetic studies using 16S rRNA indicate that the symbiotic relationship was established around 200-250 million years ago. Since Buchnera are closely related to Escherichia coli and Haemophilus influenzae, comparative genomic studies can shed light on the evolutionary mechanisms of intracellular endosymbiosis as well as the different underlying molecular basis between organisms with parasitic behavior and symbionts.