Immunogen sequence: SEHWLVLVPF WATWPYQTLL LPRRHVRRLP ELTPAERDDL ASIMKKLLTK YDNLFETSFP YSMGWHGAPT GSEAGANWNH WQLHAHYYPP LLRSATVRKF MVGYEMLAQA QRDLTPEQAA ERLRALPEVH YHLGQKDRET A Highest antigen sequence identity to the following orthologs: Mouse - 91%, Rat