Fig. 2.
a Four secondary structures of Apt(ATP) obtained in 100 mM NaCl with 5 mM MgCl2 solution at 25 °C using UNAFold program. b Tertiary structure of Apt(ATP)
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.