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Uropathogenic E. coli (UPEC) Verotoxin-producing E. coli; E. coli O157:H7 is an enterohemorrhagic strain also 2006 North American E. coli outbreak; E. coli O104:H4, also 2011 E. coli O104:H4 outbreak; Escherichia coli O121; Escherichia coli O104:H21; Escherichia coli K1, meningitis; Adherent Invasive Escherichia coli (AIEC), morbus Crohn ...
Escherichia coli (/ ˌ ɛ ʃ ɪ ˈ r ɪ k i ə ˈ k oʊ l aɪ /; commonly abbreviated E. coli) is a Gram-negative gammaproteobacterium commonly found in the lower intestine of warm-blooded organisms (endotherms). The descendants of two isolates, K-12 and B strain, are used routinely in molecular biology as both a tool and a model organism.
Escherichia coli BL21(DE3) is a commonly used protein production strain. This strain combines several features that allow for excessive expression of heterologous proteins . It is derived from the B lineage of E. coli .
All commonly used research strains of E. coli belong to group A and are derived mainly from Clifton's K-12 strain (λ + F +; O16) and to a lesser degree from d'Herelle's "Bacillus coli" strain (B strain; O7). There have been multiple proposals to revise the taxonomy to match phylogeny. [52]
E. coli (EIEC) found only in humans Bloody or nonbloody EIEC infection causes a syndrome that is identical to shigellosis, with profuse diarrhea and high fever. Enterohemorrhagic E. coli (EHEC) found in humans, cattle, and goats Bloody or nonbloody The most infamous member of this pathotype is strain O157:H7, which causes bloody diarrhea and no ...
Escherichia coli have an incubation period of 12–72 hours with the optimal growth temperature being 37 °C. Unlike the general coliform group, E. coli are almost exclusively of fecal origin and their presence is thus an effective confirmation of fecal contamination. Most strains of E. coli are harmless, but some can cause serious illness in ...
Escherichia coli is most common species for prokaryotic strain engineering. Scientists have succeeded in establishing viable minimal genomes from which new strains can be developed. [9] These minimal strains provide a near guarantee that experiments on genes outside the minimal framework will not be effected by non-essential pathways.
For instance, some Klebsiella pneumoniae strains are carbapenem resistant. [18] Various carbapenemases genes (blaOXA-48, blaKPC and blaNDM-1, blaVIM and blaIMP) have been identified in carbapenem resistant Enterobacteriaceae including Escherichia coli and Klebsiella pneumoniae. [19]