Immunogen sequence: RTKRLTAQWAL AAQRLAQKLG ATQRDQKQIL VHIGFLTEES GDVFSPRVLK GGPLGEMVQW ADILTALYVL GHGLRVTVSL KELQSNLGVP PGRGSCPLTM PLPFDLIYTD YHGLQQMKRH MGLSFKKYRC RIRVID Highest antigen sequence identity to the following orthologs - mouse 89%, rat 88%.