title: Isolation and genetic localization of three phi-X174 promoter regions.
mesh_terms: D001435:Bacteriophages / Q000032:analysis*; D001483:Base Sequence; D002874:Chromosome Mapping; D004279:DNA, Viral / Q000302:isolation & purification*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004720:Endonucleases; D004926:Escherichia coli / Q000201:enzymology; D005796:Genes; D006190:Haemophilus / Q000201:enzymology; D008722:Methods; D008854:Microscopy, Electron; D009693:Nucleic Acid Hybridization; D010759:Phosphorus Isotopes; D011119:Polynucleotides / Q000302:isolation & purification*; D011485:Protein Binding; D014316:Tritium
chemical_list: D004279:DNA, Viral; D010759:Phosphorus Isotopes; D011119:Polynucleotides; D014316:Tritium; D012321:DNA-Directed RNA Polymerases; D004720:Endonucleases