While no difference in PLAC1 expression was found between NCOA3 low and NCOA3 high expressing breast cancer tissues regardless of the ER-status or in the ERα-negative samples, a significant higher expression of PLAC1 in the NCOA3 high expressing breast cancer samples was detected exclusively in ERα-positive breast cancer samples (Figure 4). Here, PLAC1 is linked to breast carcinoma.