EOG86T5G7 GO:0016491 31/106 oxidoreductase activity molecular_function "Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced." [GOC:go_curators] EOG86T5G7 GO:0004303 2/106 estradiol 17-beta-dehydrogenase activity molecular_function "Catalysis of the reaction: estradiol-17-beta + NADP+ = estrone + NADPH + H+." [EC:1.1.1.62]