Interrogation of a dataset generated by Dr. Myles Brown's laboratory from a similar screen of ERα genomic recruitment in MCF-7 breast cancer cells showed no ERα recruitment to the INPP4B locus and corresponding lack of up- or downregulation of INPP4B expression (http://research4.dfci.harvard.edu/brownlab/datasets/index.php) (Figure 2A). This evidence concerns the gene INPP4B and breast cancer.