PathwayStep1642 PathwayStep1643 PathwayStep1644 Estrone is hydrogenated to estradiol Androstenedione is converted to estrone by Aromatase (CYP19A1) Testosterone is converted to estradiol Estrogen biosynthesis Authored: Jassal, B, 2008-10-01 13:18:42 Edited: Jassal, B, 2007-04-20 21:09:56 GENE ONTOLOGYGO:0006703 In female vertebrates, estrogens control reproductive system development and reproductive functions (Payne AH and Hales DB, 2004). Pubmed15583024 Reactome Database ID Release 43193144 Reactome, http://www.reactome.org ReactomeREACT_11037 Reviewed: D'Eustachio, P, 2007-04-20 21:11:21