Immunogen sequence: PLFQQTHKQVH EIQSCMGRLE TADKQSVHIV ENEIQASIDQ IFSRLERLEI LSSKEPPNKR QNARLRVDQL KYDVQHLQTA LRNFQHRRHA REQQG Highest antigen sequence identity to the following orthologs - mouse 85%, rat 91%. This gene encodes a trafficking membrane prot