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.
Electron density in the phased map from ACORN contoured at 1.2 σ and final refined coordinates for residues Tyr 50 and Glu 45 from chain A, and Thr 57 and Arg 60 from chain B. This figure was prepared using PyMOL (DeLano Scientific).