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.
The arrangement of the ACh receptor subunits (A) and
their common topology (B). The extracellular (EX) and
intracellular (IN) sides of the membrane are indicated. The region of
Cys substitution is enclosed in a dashed rectangle.