Immunogen sequence: RVTARRHKPI TISKRLLRER TVFYTSSLDE SEDEIQHQTP NGTITSSIEP PKPPQHPKLP IQRSGETDPG RKSPSRPILD GKLEPCPEVD VGKLVSRLQD GGTKITPK Highest antigen sequence identity to the following orthologs: Mouse - 77%, Rat - 74%. Stimulates GTP hydrolysis of