Of these, the NORAD lncRNA showed the highest relative abundance in the cellular environment (FPKM = 8.832009) and appeared co-expressed with the RALGAPB gene in all four breast cancer subtypes: Lum A, Lum B, Her2-enriched, and Basal-like, with the highest mutual information value in the Basal-like subtype (0.55) (p < 0.00001). The gene discussed is ERBB2; the disease is breast cancer.