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.
Comparison of the hypothetical binding orientation of 31 (grey) and the crystallographically obtained orientation of 1 (green). Left: view from the side of the AT base pair (not shown). Right: view from the side of the intact DNA strand.