Immunogen sequence: SSRLFIEPRE LLARVCHLCI EQQQLDKPVL DKARVRKFGP KLLQLLAEWT ETFPRDFQEE STIGHLKDVV GRIAPCDEAY RKRMHQLLQA LHQKLAALRQ GPEGLVGADK PISYRTKPPA SIHRELLGVC SDPYTLAQQL TH Highest antigen sequence identity to the following orthologs: Mouse - 92%, Ra