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Atomic force micrographs of kDNA after its incubation in the presence and absence (control) of LdAct, showing decatenation of kDNA with LdAct. Panels (a,b) control kDNA, arrows indicate catenated kDNA. Panels (c,d) kDNA with rLdAct, arrowheads indicate decatenated nicked kDNA (scale bar: 500 nm) (This figure was originally published in Nucleic Acids Research, Kapoor et al., 2010© Oxford University Press).
