Immunogen sequence: KQTEAPRMLP VVTESSTSPY VTSYKSPVTT LDKSTGIGIS TESEDVPQLS GETAIEKPEE FGKHPESWNN DDILKKILDI NSQVQQALLS DTSNPA Highest antigen sequence identity to the following orthologs: Mouse - 33%, Rat - 41%. The encoded protein is a human alloantigen