Query: NC_009655:866281 Actinobacillus succinogenes 130Z chromosome, complete genome Lineage: Actinobacillus succinogenes; Actinobacillus; Pasteurellaceae; Pasteurellales; Proteobacteria; Bacteria General Information: Succinate-producing bacterium. Originally isolated from bovine rumen, this species is one of the most promising succinate producers known. It can utilize a variety of sugars and produce a very high volume of succinate, which is used by the pharmaceutical industry. This organism has been improved over time by growth on fermentable carbon and sodium monofluoroacetate and selection of fluoroacetate-resistant mutants which have a higher succinate yield. The succinate yield has also been improved via a metabolic engineering approach, by cloning and overproducing the PEP-carboxykinase gene which catalyzes the addition of carbon dioxide to PEP to form oxalacetate and can work physiologically in both directions
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General Information: Isolated from a soil sample from the Republic of Congo. Causative agent of plague. Specific virulence factors are encoded within pathogenicity islands (PAIs) that are required for the invasive phenotype associated with Yersinia infections. One key virulence plasmid contained by the three human-specific pathogens is pCD1/pYv, which encodes a type III secretion system for the delivery of virulence proteins that contribute to internalization into the host cell. It is the causative agent of plague (bubonic and pulmonary) a devastating disease which has killed millions worldwide. The organism can be transmitted from rats to humans through the bite of an infected flea or from human-to-human through the air during widespread infection. Yersinia pestis is an extremely pathogenic organism that requires very few numbers in order to cause disease, and is often lethal if left untreated. The organism is enteroinvasive, and can survive and propagate in macrophages prior to spreading systemically throughout the host. Yersinia pestis consists of three biotypes or serovars, Antiqua, Mediavalis, and Orientalis, that are associated with three major pandemics throughout human history. pMT1 encodes a protein, murine toxin, that aids rat-to-human transmission by enhancing survival of the organism in the flea midgut. Yersinia pestis also contains a PAI on the chromosome that is similar to the SPI-2 PAI from Salmonella that allows intracellular survival in the organism.