Immunogen sequence: ERSPNLRRSS AAGEGTLARA QPPAPQSPPA PQSPPAGTLS GLSQTHPSQQ HVGLSRTVRL HPTATASSQL SSNALPPGPG LEQRDGTQQA VPLEHPSSPW GLNLTEKIKK IKIVFTPTIC KQTCARGHCA NSCERG Highest antigen sequence identity to the following orthologs: Mouse - 60%, Rat - 62%