Finally, 11 candidate TAAs were identified, and autoantibodies against these 11 TAAs, including INPP5A, F8, NRAS, MFGE8, PTP4A1, RRAS2, RGS4, RHOG, SRARP, RAC1, and TMEM243 were evaluated as potential markers in GC. The gene discussed is RAC1; the disease is gastric cancer.