Immunogen sequence: PLFINKPLIV VANKCDVKRI AELSEDDQKI FTDLQSEGFP VIETSTLTEE GVIKVKTEAC DRLLAHRVET KMKGNKVNEV LNRLHLAIPT Highest antigen sequence identity to the following orthologs: Mouse - 93%, Rat - 93%. GTP-binding proteins are GTPases and function as