Driven Translocation of Polynucleotides Through an Aerolysin Nanopore.

Aerolysin has been used as a biological nanopore for studying peptides, proteins, and oligosaccharides in the past two decades. Here, we report that wild-type aerolysin could be utilized for polynucleotide analysis. Driven a short polynucleotide of four nucleotides length through aerolysin occludes nearly 50% amplitude of the open pore current. Furthermore, the result of total internal reflection fluorescence measurement provides direct evidence for the driven translocation of single polynucleotide through aerolysin.