Immunogen sequence: DELLDMKSEE GACLGPVAGT PEPEGADKDD LLLLSEIFNA SSLEEGEFSK EWAAVFGDGQ VKEPVPTMAL GEPDPKAQTG SGFLPSQLLD QNMKDLQASL QEPAKAASDL TAWFSLFADL DPLSNPDAVG KTDKEHELL. This gene encodes a protein with an arfaptin homology domain that is found both