As previously discussed, Affymetrix microarrays do not have a relevant probe for CUX1 (Sansregret et al., 2011), but the Oncomine database still contained three breast cancer datasets with data on CUX1 expression (Esserman et al., 2012; Glück et al., 2012; Cancer Genome Atlas Network, 2012). The gene discussed is CUX1; the disease is breast carcinoma.