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A single nucleotide exchange in the wzy gene is responsible for the semirough O6 lipopolysaccharide phenotype and serum sensitivity of Escherichia coli strain Nissle 1917.
Grozdanov L, Zähringer U, Blum-Oehler G, Brade L, Henne A, Knirel YA, Schombel U, Schulze J, Sonnenborn U, Gottschalk G, Hacker J, Rietschel ET, Dobrindt U. Grozdanov L, et al. J Bacteriol. 2002 Nov;184(21):5912-25. doi: 10.1128/JB.184.21.5912-5925.2002. J Bacteriol. 2002. PMID: 12374825 Free PMC article.