Query: NC_006624:2016000 Thermococcus kodakarensis KOD1, complete genome
Lineage: Thermococcus kodakarensis; Thermococcus; Thermococcaceae; Thermococcales; Euryarchaeota; Archaea
General Information: This organism was originally identified as Pyrococcus sp. strain KOD1. It was isolated from a solfatara on Kodakara Island, Japan. Hyperthermophilic archeon. This genus is a member of the order Thermococcales in the Euryarchaeota. Thermococcus sp. are the most commonly isolated hyperthermophilic organisms and are often isolated from marine hydrothermal vents and terrestrial hot sulfur springs. Elemental sulfur is either required for, or stimulates, growth. These obligate heterotrophs can ferment a variety of organic compounds, including peptides, amino acids, and sugars in the absence of sulfur. Thermococcus kodakaraensis is a hyperthermophilic archeon. Proteins from this organism have been extensively studied to find thermostable enzymes for industrial and biotechnological applications.
Subject: NC_004631:283289 Salmonella enterica subsp. enterica serovar Typhi Ty2, complete
Lineage: Salmonella enterica; Salmonella; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria
General Information: This pathogenic strain of Salmonella typhi was isolated in the early 1970s. It contains no multidrug resistance plasmids and has been used for vaccine development. This serovar is a human-specific organism that causes the life-threatening illness Typhoid fever which is acquired by coming into contact with contaminated food or water. Annually, 17 million people are infected, with 600,000 fatalities, mostly in developing countries. It contains multiple fimbrial operons that may be used to create extracellular appendages for attachment and entry into host intestinal epithelial cells. Causes enteric infections. This group of Enterobactericiae have pathogenic characteristics and are one of the most common causes of enteric infections (food poisoning) worldwide. They were named after the scientist Dr. Daniel Salmon who isolated the first organism, Salmonella choleraesuis, from the intestine of a pig. The presence of several pathogenicity islands (PAIs) that encode various virulence factors allows Salmonella spp. to colonize and infect host organisms. There are two important PAIs, Salmonella pathogenicity island 1 and 2 (SPI-1 and SPI-2) that encode two different type III secretion systems for the delivery of effector molecules into the host cell that result in internalization of the bacteria which then leads to systemic spread.