ARL4C and gastric cancer: The correlation of the A allele and increased ARL4C expression was also confirmed in an independent validation set of primary GC patients from Singapore (n = 161 patients, P = 0.029 between GG and AA, Fig. 5f) and another validation set of colon samples collected by the Genotype-Tissue Expression (GTEx) project [78] (n = 368 individuals, P < 0.05 between GG and AA, Additional file 2: Fig. S21).