Getting GO enriched gene set by GO enrichment analysis. Three different tools were used to perform GO term enrichment analyse for known breast cancer genes. Top 50 enriched GO terms were picked from results obtained by each tool, and their union were generated. Nine cancer-hallmark GO terms from  were added into the enriched GO term set. The enriched GO term set were re-mapped back to a set of human genes based on Homo sapiens GO annotations, called the GO enriched gene set (GOSet).