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.
(Upper) Sequences of NT, NT(8–13), and NT(9–13) in single-letter code. (Lower) Schematic representation of the NT receptor fusion proteins. Amino acids in single-letter notation are given in gray; subscripts stand for repetition.