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.
Stereoview of the three-dimensional structure of (A) native barnase–barstar complex, (B) banase–barstar NMR stable designer complex, and (C) barnase–allergen PHL P2 unstable designer complex. The receptor (marine blue) and ligand (yellow) are shown in ribbon representation.
