title: Replication control functions of plasmid R1 act as inhibitors of expression of a gene required for replication.
mesh_terms: D004261:DNA Replication; D004926:Escherichia coli / Q000235:genetics*; D007763:Lac Operon; D010641:Phenotype; D010957:Plasmids; D011995:Recombination, Genetic; D013489:Suppression, Genetic