title: Isolation of double-helical regions rich in adenine-thymine base pairing from bacteriophage f1 DNA.
mesh_terms: D000225:Adenine / Q000032:analysis*; D002499:Centrifugation, Density Gradient; D002850:Chromatography, Gel; D003090:Coliphages / Q000032:analysis*; D004279:DNA, Viral / Q000032:analysis*; D003851:Deoxyribonucleases; D004926:Escherichia coli; D011489:Protein Denaturation; D012343:RNA, Transfer; D013696:Temperature; D013941:Thymine / Q000032:analysis*
chemical_list: D004279:DNA, Viral; D012343:RNA, Transfer; D003851:Deoxyribonucleases; D000225:Adenine; D013941:Thymine