Immunogen sequence: ELNWSLLPED AVVQDYVPIP TTEELKAVRV STEANRSIVP ISRGQRQKSS DESCLVVLFA GDYTIANARK LIDEMVGKGF FLVQTKEVSM KAEDAQRVFR EKAPDFLPLL NKGPVIALE Highest antigen sequence identity to the following orthologs: Mouse - 88%, Rat - 87%. The RP2 locus has