Query: NC_007973:2150962 Ralstonia metallidurans CH34 chromosome 1, complete sequence Lineage: Cupriavidus metallidurans; Cupriavidus; Burkholderiaceae; Burkholderiales; Proteobacteria; Bacteria General Information: This strain was first identified in the heavy metal-contaminated sludge of a settling tank in Belgium in the late 1970s. This organism, formerly Ralstonia metallidurans, is capable of growth in the presence of a large number of heavy metals including silver, cadmium, chromium, cobalt, copper, mercury, nickel, lead, thallium, and zinc.
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General Information: Acidovorax sp. JS42, formerly Pseudomonas sp. JS42, was isolated from nitrobenzene-contaminated sediment and is capable of using 2-nitrotolulene as a sole carbon and energy source. 2-nitrotolulene, a nitroaromatic compound, is used in the manufacture of dyes, pigments and explosives. Nitroaromatic compounds, which contain an aromatic ring with one or more nitro groups attached, are a significant contaminant in industrial soils. Acidovorax sp. JS42 degrades 2-nitrotolulene by first removing the nitro moiety producing 3-methylcatechol. The enzyme involved in this process, 2-nitrotolulene dioxygenase, has been purified and characterized.