SLC6A2 and ovarian carcinoma: The main enriched molecular function terms for the up-regulated genes in BRCA1-defective ovarian cancer cells were “catecholamine binding,” “oxidoreductase activity, acting on the CH-NH group of donors,” “calcium-dependent protein binding,” “WW domain binding,” “neurotransmitter transporter activity,” and “cyclic nucleotide binding” (Figure 3C).