Immunogen sequence: TGEEDVIMEA LRSYNQEHSQ SFTFDDAQQE DRKRLAELLV SVLEQGLPPS HRVIWLQSVR ILSRDRNCLD PFTSRQSLQA LACYADISVS EGSVPESADM DVVLES Highest antigen sequence identity to the following orthologs: Mouse - 79%, Rat - 77%. Guanine nucleotide exchange fac