EOG89S8RK GO:0005506 2/5 iron ion binding molecular_function "Interacting selectively and non-covalently with iron (Fe) ions." [GOC:ai] EOG89S8RK GO:0020037 2/5 heme binding molecular_function "Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring." [CHEBI:30413, GOC:ai] EOG89S8RK GO:0016705 2/5 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen molecular_function "Catalysis of an oxidation-reduction (redox) reaction in which hydrogen or electrons are transferred from each of two donors, and molecular oxygen is reduced or incorporated into a donor." [GOC:mah]