Query: NC_015942:1711026 Acidithiobacillus ferrivorans SS3 chromosome, complete genome
Lineage: Acidithiobacillus ferrivorans; Acidithiobacillus; Acidithiobacillaceae; Acidithiobacillales; Proteobacteria; Bacteria
General Information: Isolation: Norilsk, Russia; Temp: Psychrotolerant. This organism is an acidophilic bacterium able to grow at a pH as low as 1.9 (optimum pH of 2.5). This bacterium is able to grow using sulfur and ferrous iron as electron donors.
Subject: NC_002973:72328 Listeria monocytogenes str. 4b F2365, complete genome
Lineage: Listeria monocytogenes; Listeria; Listeriaceae; Bacillales; Firmicutes; Bacteria
General Information: This strain was isolated in 1985 in California, USA, during an outbreak of listeriosis among patients with AIDS. The strain is of serotype 4b and was isolated from a cheese product that caused the outbreak. This organism, which causes listeriosis, is one of the leading causes of death from food-borne pathogens especially in pregnant women, newborns, the elderly, and immunocompromised individuals. It is found in environments such as decaying vegetable matter, sewage, water, and soil, and it can survive extremes of both temperatures (1-45 degrees C) and salt concentration marking it as an extremely dangerous food-born pathogen, especially on food that is not reheated. This organism is enteroinvasive, and utilizes an actin-based motility system by using a surface protein, ActA, that promotes actin polymerization, to spread intercellularly using the polymerized cytoskeletal protein as a "motor". There are 13 serovars associated with Listeria monocytogenes, and the serovar 4b strains are more commonly associated with invasive disease.