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.
Model for the activation and repression of gene transcription involving the accessory role of NM23-H2 in interconversion of the unstructured purine and pyrimidine single-stranded DNA forms to the paranemic secondary DNA structures. Interaction of the G-quadruplex structure with TMPyP4 stabilizes the gene-off form by inhibition of conversion to the single-stranded gene-on forms (see text for further details).
