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. 1980 Jul;29(1):278-80.
doi: 10.1128/iai.29.1.278-280.1980.

Determinants that increase the serum resistance of Escherichia coli

P W Taylor, M K Robinson

Determinants that increase the serum resistance of Escherichia coli

P W Taylor et al. Infect Immun. 1980 Jul.

Abstract

The rfb locus, determining biosynthesis of O8-specific lipopolysaccharide side chains, was transferred to a rough mutant of Escherichia coli; recombinants producing a complete lipopolysaccharide were more resistant to the complement-mediated bactericidal action of human serum than the rough recipient. Inheritance of the his-linked genes for K27 antigen production did not alter the response to serum. The serum resistance of strains carrying O8 side chains, but not of strains with incomplete lipopolysaccharides, was further increased by inheritance of plasmids R1 and NR1.20

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