title: Breaks induced in supercoiled colicinogenic factor E1 DNA as a result of the decay of incorporated tritium.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D002850:Chromatography, Gel; D003087:Colicins / Q000096:biosynthesis*; D004269:DNA, Bacterial / Q000378:metabolism; D004277:DNA, Single-Stranded; D005615:Freezing; D006863:Hydrogen-Ion Concentration; D009690:Nucleic Acid Conformation; D011854:Radiochemistry; D013936:Thymidine; D013997:Time Factors; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D003087:Colicins; D004269:DNA, Bacterial; D004277:DNA, Single-Stranded; D014316:Tritium; D013936:Thymidine