Figure 2.
An example of weak protein–ligand interaction: a tandem winged-helix domain of RNA polymerase I subunit A49 in complex with a fragment of polyethylene glycol PEG 4000 (PE4).
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.