UCEC (p = 2.1e−0.7), BRCA (p = 0.00014), SARC (p = 0.0061), BLCA (p = 0.019), LIHC (p = 0.02), and THYM (p = 0.02) were the six cancers studied that were most linked with COL15A1 expression levels to present the findings. The gene discussed is COL15A1; the disease is cancer.