There was a positive correlation between ESR1 and ROBO1 gene expression in BRCA-Basal patients, and EGFR showed a positive correlation with LIMK2, ROBO1, NEDD9, and MBP expression levels in BRCA-Basal patients, as well, demonstrating to be a good marker for carcinogenicity, especially for Basal breast cancer patients. The gene discussed is ESR1; the disease is breast cancer.