Figure 2.
Death receptors and death ligands are trimeric. Shown are two views of the structure of tumor necrosis factor (TNF; green) bound to the extracellular regions of the TNF receptor (TNFR1, blue). (PDB 1TNR [Banner et al. 1993].)
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.