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 map contoured at 1σ (green mesh) of the sugar-binding site of LacY G46W/G262W. The density is superimposed on the structure, which is shown as sticks, with carbon atoms in gold, oxygen atoms in red, and nitrogen atoms in blue. Broken lines represent putative H bonds.
