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.
Three transmembrane inhibitors (CPA, TG, and BHQ) superimposed with Cα traces of the three crystal structures, E1·2Ca2+ (violet), E2(CPA+CC) (yellow), and E2(TG+BHQ) (light green), viewed in stereo. The side chains of several key residues are shown. The transmembrane helices (M1–M6) are numbered.
