Immunogen sequence: HARSLEPLPS SGPDFGGLGE EAEFVEVEPE AKQEILENKD VVVQHVHFDG LGRTKDDIII CEIGDVFKAK NLIEVMRKSH EAREKLLRLG IFRQVDVLID Highest antigen sequence identity to the following orthologs: Mouse - 96%, Rat - 95%. SAMM50 is a component of the sorting a