KLRC1 expression was significantly lower in most of the tumors compared with adjacent normal tissues, such as breast invasive carcinoma, colon adenocarcinoma, liver hepatocellular carcinoma, LUAD, LUSC, PRAD, rectum adenocarcinoma, and uterine corpus endometrial carcinoma. This evidence concerns the gene KLRC1 and uterine corpus endometrial carcinoma.