Figure 3.
Analysis of the translocation events reveals different topological conformations. (a) Uniform translocation events suggest a circular covalently closed structure. (b) An illustration of circular covalently closed DNA. (c) Translocation events with a peak current drop of ∼400 pA composed of two discrete current drops of ∼200 pA. The second current drop within the event suggests a branched structural conformation. (d) An illustration of a branched circular DNA structure.