OAS1 and rectum adenocarcinoma: ESCA, BLCA, BRCA, HNSC, KIRC, KIRP, LUAD, READ (Rectum adenocarcinoma), STAD (Stomach adenocarcinoma) and THCA show high expression of OAS1 in tumor tissues than that in matched normal tissues, whereas OAS1 mRNA level in KICH was significantly lower than that in the matched normal tissues (Figure 1B).