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.
(A) Conserved intramolecular disulfide bonds in the extracellular part of CXCR4. (B) Both disulfides are a part of the receptor:chemokine interface, with one of the disulfides found in direct proximity to the conserved N-terminal disulfide pattern of the chemokine.
