title: Knotted single-stranded DNA rings: a novel topological isomer of circular single-stranded DNA formed by treatment with Escherichia coli omega protein.
mesh_terms: D001426:Bacterial Proteins; D001665:Binding Sites; D004270:DNA, Circular; D004277:DNA, Single-Stranded; D004279:DNA, Viral; D004926:Escherichia coli; D007536:Isomerism; D007700:Kinetics; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D009994:Osmolar Concentration; D011485:Protein Binding; D013696:Temperature; D014461:Ultracentrifugation
chemical_list: D001426:Bacterial Proteins; D004270:DNA, Circular; D004277:DNA, Single-Stranded; D004279:DNA, Viral