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.
Domain organization of SsSIGN proteins. CTLD is located at the carboxyl end and connected to the transmembrane domain trough a neck region containing, in most cases, heptad repeats possibly involved in oligomerization. Neck and cytoplasmatic regions primary structure lengths are displayed proportionally for each homolog.
