Immunogen sequence: EIIVIKDTEK KDQSKTEGSV CLFKQAPSDP VSVLNWLLSD LQKYALGFQH ALSPSTSTCK HKVGDTEGEY HRASSENCYS VYADQVNIDY LMNRPQNLRL EMTAAKNTNN NQSPSAPPAK PPSTQRAVIS PDGECSIDD Highest antigen sequence identity to the following orthologs: Mouse - 81%, Rat -