PRKG1 and endometriosis: Infertile endometriosis might be linked to amino acid metabolism (Glycine, Serine, Tryptophan, Tyrosine, Phenylalanine, and Threonine), Gastric acid secretion, Bile secretion, Collecting duct acid secretion, cGMP–PKG signaling pathway, cAMP signaling pathway, Calcium signaling pathway, and so on, according to the results of KEGG enrichment analysis (Supplementary Table 5).