title: The lac repressor-operator interaction. IV. Assay and purification of operator DNA.
mesh_terms: D004269:DNA, Bacterial / Q000032:analysis* / Q000302:isolation & purification; D004926:Escherichia coli; D007785:Lactose / Q000378:metabolism; D008722:Methods; D008967:Molecular Biology; D009876:Operon; D010759:Phosphorus Isotopes; D013489:Suppression, Genetic; D014732:Vibration
chemical_list: D004269:DNA, Bacterial; D010759:Phosphorus Isotopes; D007785:Lactose