The lipopolysaccharide of recipient cells is a specific receptor for PilV proteins, selected by shufflon DNA rearrangement, in liquid matings with donors bearing the R64 plasmid.

Abstract excerpt

Shufflon DNA rearrangement selects one of seven PilV proteins with different C-terminal segments, which then becomes a minor component of the thin pili of Escherichia coli strains bearing the plasmid R64. The PilV proteins determine the recipient specificity in liquid matings. A recipient Escherichia coli K-12 strain was specifically recognized by the PilVA', -C, and -C' proteins, while E. coli B was recognized...

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