Immunogen sequence: PETHSVPAPG GPAAQAAPAA PGLSLGEGRE AATSSDDEEE DDVVFVSSKP GSPLLFDSTL DLETKENLQF PDRSVQRKVS PASGVSKKVE PSDPVARRVY LTTQLKQKKS TLASVNIQAL PDKGQKLIKQ IQELEEVLSG LT Highest antigen sequence identity to the following orthologs: Mouse - 56%, Ra