Full text loading...
Production of pili directed either by the sex factor F or by the drug-resistance factor R 100 in Escherichia coli K 12 is regulated by a gene which acts by producing a repressor, and the mutant R 100–1 no longer produces this repressor. The specific pilus determined by R 100–1 resembled the F pilus morphologically, but differed in its affinity for F-specific RNA phages. Mutants of F and R 100–1 which had lost the ability to synthesize pili could each restore to the other the ability to produce pili on mixed infection of the same host.
Article metrics loading...
Full text loading...
References
Data & Media loading...