Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The defined Topo IV-binding site. Schematic presentation of the defined Topo IV-binding site (19) in the T440 partial duplex DNA. The DNA sequence around two points of scission (arrows) is shown. Nucleotides (large letters) replaced with an AP are numbered by their position relative to the point of scission. The closed circle represents the 32P-labeled nucleotide at the 3′-end of the annealed oligo. Details are described in the text.
