To study the prevalence of ERMP1 and its potential clinical significance IHC analysis with ERMP1 mAb was performed on TMAs carrying different sets of well-characterized FFPE samples from breast (136 cases, in duplicate), colon (CRC) (667 cases), lung (368 cases of Non-Small-Cell Lung Carcinoma (NSCLC) and ovary (150 cases) cancers, selected on the basis of the availability of relevant clinical and molecular data (Supplementary Table S1). The gene discussed is ERMP1; the disease is cancer.