Immunogen sequence: GNVENNGVLS FIKHVLFPLK SEFVILRDEK WGGNKTYTAY VDLEKDFAAE VVHPGDLKNS VEVALNKLLD PIREKFNTPA LKKLASAAYP DPSKQKPMAK GPAKNSEPEE VIPSRLDIRV GKIITVEKHP DAD Highest antigen sequence identity to the following orthologs: Mouse - 95%, Rat - 93%. A