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.
Sequence alignment of the light chain (β2m) of FcRn from human (H), monkey (MK), rat (R), and mouse (M). Red colored residues are at the binding interface with Fc. The overall homology is ~85% for the light chain of Fc from these different species.
