EOG8PCD81 GO:0016491 1/5 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] EOG8PCD81 GO:0016630 1/5 protochlorophyllide reductase activity molecular_function "Catalysis of the reaction: chlorophyllide a + NADP+ = protochlorophyllide + NADPH + H+." [EC:1.3.1.33]