Figure 3From: Finding of widespread viral and bacterial revolution dsDNA translocation motors distinct from rotation motors by channel chirality and sizeDemonstration of Phi29 connector channel size larger than the diameter of dsDNA as proved by single pore translocation of double-stranded and tetra-stranded DNA by conductance assay. Current blockage of the channel by double-stranded was 32% (A) and by tetra-stranded DNA was 64% (B). Purified Phi29 connector was incorporated into lipid bilayer. Switch of voltage polarity revealed that the channel allowed only unidirectional translocation of both dsDNA (A) and tetra-stranded DNA (B).Back to article page