title: Clustering of tRNA cistrons in Escherichia coli DNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D002850:Chromatography, Gel; D004269:DNA, Bacterial; D004277:DNA, Single-Stranded; D003851:Deoxyribonucleases; D004720:Endonucleases; D004926:Escherichia coli; D005796:Genes; D008970:Molecular Weight; D009492:Neurospora crassa / Q000201:enzymology; D009693:Nucleic Acid Hybridization; D010756:Phosphoric Acids; D010761:Phosphorus Radioisotopes; D012343:RNA, Transfer; D013462:Sulfur Radioisotopes; D013464:Sulfuric Acids
chemical_list: D004269:DNA, Bacterial; D004277:DNA, Single-Stranded; D010756:Phosphoric Acids; D010761:Phosphorus Radioisotopes; D013462:Sulfur Radioisotopes; D013464:Sulfuric Acids; D012343:RNA, Transfer; D003851:Deoxyribonucleases; D004720:Endonucleases