regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological quality system process oxidation-reduction process regulation of biological qualityregulation of biological quality system processsystem process oxidation-reduction processoxidation-reduction process oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activity organic cyclic compound binding ion binding heterocyclic compound binding cofactor binding small molecule binding oxidoreductase activityoxidoreductase activity organic cyclic compoundorganic cyclic compound binding ion bindingion binding heterocyclic compound bheterocyclic compound binding cofactor bindingcofactor binding small molecule bindingsmall molecule binding extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular regionextracellular region