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.
Active site residues are shown as sticks with gray C-skeleton. The aglucone is shown with the C-skeleton in cyan. The color code for heteroatoms is as follows: yellow, sulfur; blue, nitrogen; red, oxygen. Fe2+ is represented by a purple sphere.
