title: Studies of the regulation of colicin Ib synthesis. I. Isolation of the col Ib-P9 plasmid.
mesh_terms: D002875:Chromosomes; D003087:Colicins / Q000096:biosynthesis*; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000378:metabolism; D005111:Extrachromosomal Inheritance; D005827:Genetics, Microbial; D006824:Hybridization, Genetic; D008967:Molecular Biology; D008970:Molecular Weight
chemical_list: D003087:Colicins; D004269:DNA, Bacterial