Immunogen sequence: DSSPLLNEVS SSLIGTDSQA FPSVSKPSSA YPSTTIVNPT IVLLQHNREQ QKRLSSLSDP VSERRVGEQD SAPTQEKPTS PGKAIEKRAK DDSRRVVKST QDLSDVSMDE VGIPLRNTER SKDWYKTMFK QIHKLNR Highest antigen sequence identity to the following orthologs: Mouse - 84%, Rat - 85