Immunogen sequence: HALRILTAPR DLPLARHASL RLLSDPRSGE PLDRALVLWF PGPQSFTGED CVEFHVHGGP AVVSGVLQAL GSVPGLRPAE AGEFTRRAFA NGKLNL Highest antigen sequence identity to the following orthologs: Mouse - 84%, Rat - 82%. This locus encodes a GTP-binding protein.