Histological stratification analysis showed that GABARAPL1 was down-regulated in all types of GC compared with normal tissues, with fold change of −2.321 in intestinal gastric adenocarcinoma, −2.287 fold in diffuse adenocarcinoma and −2.622 fold in mixed adenocarcinoma. Here, GABARAPL1 is linked to gastric intestinal type adenocarcinoma.