Query: NC_010554:2789722 Proteus mirabilis HI4320, complete genome
Lineage: Proteus mirabilis; Proteus; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria
General Information: Proteus mirabilis is a tetracycline resistant human urinary tract isolate. This bacterium is part of the normal gut flora of a healthy individual, but is also an opportunistic pathogen. Flagellar movement allows this organism to travel through the urinary tract into the bladder and kidney where it may cause infection or stones. Cell death is caused by hemolysin, a pore-forming toxin which disrupts osmotic balance across the host cell membrane. This species is inherently resistant to nitrofuran and tetracycline, and some strains have recently become resistant to ampicillin and trimethoprin.
Subject: NC_010520:35845 Clostridium botulinum A3 str. Loch Maree, complete genome
Lineage: Clostridium botulinum; Clostridium; Clostridiaceae; Clostridiales; Firmicutes; Bacteria
General Information: Clostridium botulinum A3 str. Loch Maree was isolated from duck liver paste during a botulism outbreak at a hotel in the Scottish highlands in 1922. This was the first and worst outbreak of botulism in the United Kingdom (UK). This organism produces one of the most potent and deadly neurotoxins known, a botulinum toxin that prevents the release of acetylcholine at the neuromuscular junction, thereby inhibiting muscle contraction and causing paralysis. In most cases the diseased person dies of asphyxiation as a result of paralysis of chest muscles involved in breathing. The spores are heat-resistant and can survive in inadequately heated, prepared, or processed foods. Spores germinate under favorable conditions (anaerobiosis and substrate-rich environment) and bacteria start propagating very rapidly, producing the toxin.Botulinum toxin, and C. botulinum cells, has been found in a wide variety of foods, including canned ones. Almost any food that has a high pH (above 4.6) can support growth of the bacterium. Honey is the most common vehicle for infection in infants. Food poisoning through C. botulinum is the most frequent type of infection caused by this bacterium. The wound botulism that occurs when C. botulinum infects an individual via an open wound is much rarer and is very similar to tetanus disease. There are several types of botulinum toxin known (type A through type F), all of them being neurotoxic polypeptides. The most common and widely distributed are strains and serovars of C. botulinum that produce type A toxin.