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.
Fluorescence changes accompanying quadruplex to duplex transition from addition of the cytosine-rich complementary strand. Quadruplex, d(CGGG(2-AP)GGTTTTGGGCGGC); 2-AP was incorporated into the loop position. Complementary strand, d(GCCGC CCAAAACCTCCCG) (red).
