Immunogen sequence: LQDVYKIGGI GTVPVGRVET GVLKPGMVVT FAPVNVTTEV KSVEMHHEAL SEALPGDNVG FNVKNVSVKD VRRGNVAGDS KNDPPMEAAG FTAQVIILNH P; Positive samples: HeLa, 293T, MCF7, Mouse lung, Mouse liver, Mouse kidney, Rat kidney. This protein promotes the GTP-depe