Immunogen sequence: IIHTGEKPYK CNECGKAFGR WSALNQHQRL HTGEKHYHCN DCGKAFSQKA GLFHHIKIHT RDKPYQCTQC NKSFSRRSIL TQHQGVHTGA KPYECNECGK AFVYNSSLVS HQEIHHK Highest antigen sequence identity to the following orthologs: Mouse - 83%, Rat - 80%. May be involved in