Next, the KEGG enrichment analysis implicated several target genes of GP in cancer-related pathways (hsa05200), PI3K–Akt signaling pathway (hsa04151), estrogen signaling pathway (hsa04915), breast cancer (hsa05224), EGFR tyrosine kinase inhibitor resistance (hsa01521), proteoglycans in cancer (hsa05205), and Ras signaling pathway (hsa04014). The gene discussed is EGFR; the disease is breast cancer.