FcRn is a heterodimer composed of a membrane bound heavy chain attached noncovalently to beta 2-microgloublin.
The antibody recognizes FcRn heavy chain heterodimers.
FcRn is a heterodimer composed of a membrane bound heavy chain attached noncovalently to beta 2-microgloublin. It is structurally similar to class I major histocompatibility (MHC) molecules.
The IG3 (ATCC CRL-2434) antibody recognizes two lipid linked forms of FcRn.
These forms are truncated FcRn heavy chain paired with beta 2-microgloublin-DAF (FcRn beta-2 microglobulin DAF) and lipid-linked FcRn paired with unaltered beta 2-microgloublin (FcRn-DAF/beta 2-microgloublin).
It also recognizes the FcRn-DAF construct.
The 2G3 (ATCC CRL-2435) antibody fails to recognize the FcRn heterodimer form in which the heavy chain is attached to the lipid anchor (FcRn-DAF/beta 2-microgloublin) and it also fails to recognize the FcRn-DAF construct.
Unlike 4C9 (ATCC CRL-2437), the monoclonal antibodies IG3 (ATCC CRL-2434) and 2G3 (ATCC CRL-2435) do not recognize rat beta 2-microglobulin alone or complexed with FcRn heavy chains.
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