Lilley, D M The supercoil-stabilised cruciform of ColE1 is hyper-reactive to osmium tetroxide. [electronic resource] - The EMBO journal May 1984 - 1187-92 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0261-4189 Standard No.: 10.1002/j.1460-2075.1984.tb01949.x doi Subjects--Topical Terms: Bacteriocin PlasmidsBinding SitesChemical PhenomenaChemistryColicinsDNA Restriction EnzymesDNA, SuperhelicalEscherichia coli--geneticsNucleic Acid ConformationOsmiumOsmium TetroxidePlasmids