title: Action of S1 nuclease on nicked circular simian virus 40 DNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D004270:DNA, Circular / Q000378:metabolism; D004277:DNA, Single-Stranded / Q000378:metabolism; D004279:DNA, Viral / Q000378:metabolism*; D003851:Deoxyribonucleases / Q000378:metabolism*; D004587:Electrophoresis, Agar Gel; D007700:Kinetics; D008968:Molecular Conformation; D008970:Molecular Weight; D013539:Simian virus 40 / Q000378:metabolism* / Q000528:radiation effects
chemical_list: D004270:DNA, Circular; D004277:DNA, Single-Stranded; D004279:DNA, Viral; D003851:Deoxyribonucleases