An official website of the United States government
Here's how you know
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.
Common polymerase fold, with palm, thumb, and fingers domains, illustrated with SF DNAP (PDB ID: 1QSY) (A), T7 RNAP (PDB ID: 1QLN) (B), and RT from HIV-1 (PDB ID: 1RTD) (C). Primer/template is shown in orange.