Escherichia coli O83:H1 str. NRG 857C

Escherichia coli O83:H1 str. NRG 857C is a Gram-negative bacterium characterized by its rod shape and mobility, facilitated by the presence of flagella. It exhibits a typical arrangement of cells in pairs and singles, which is common among members of the Enterobacteriaceae family. This strain is classified as a facultative anaerobe, allowing it to thrive in both aerobic and anaerobic environments. Its optimal growth temperature is 37°C, placing it within the mesophilic temperature range. E. coli O83:H1 str. NRG 857C has two replicons and is surrounded by two membranes, consistent with its classification as a Gram-negative organism. The strain is known to be free-living, indicating that it can exist independently in various environments, although it is also host-associated, suggesting a potential connection to animal or human hosts. The dual capability of E. coli O83:H1 str. NRG 857C to adapt to differing oxygen levels and its optimal growth at body temperature highlight its potential role in various ecological niches, particularly in association with warm-blooded hosts. This adaptability may contribute to its survival and proliferation within diverse habitats, underscoring the ecological significance of such bacteria in both human health and environmental microbiology. Accessions for this strain can be found in genomic databases under NC_017634.1 and NC_017659.1.