Figure 1.
Pol β ribbon diagram of the loop region. Loop II, containing amino acid residues R253, E249 and D246, and the subdomains of pol β are labeled.
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.