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GO:0016491
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oxidoreductase activity
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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. |
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GO:0003824
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catalytic activity
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Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic. |
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GO:0016651
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oxidoreductase activity, acting on NAD(P)H
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Catalysis of an oxidation-reduction (redox) reaction in which NADH or NADPH acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor. |
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GO:0016668
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oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor
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Catalysis of an oxidation-reduction (redox) reaction in which a sulfur-containing group acts as a hydrogen or electron donor and reduces NAD or NADP. |
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GO:0016209
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antioxidant activity
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Inhibition of the reactions brought about by dioxygen (O2) or peroxides. Usually the antioxidant is effective because it can itself be more easily oxidized than the substance protected. The term is often applied to components that can trap free radicals, thereby breaking the chain reaction that normally leads to extensive biological damage. |
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GO:0003674
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molecular_function
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Elemental activities, such as catalysis or binding, describing the actions of a gene product at the molecular level. A given gene product may exhibit one or more molecular functions. |
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GO:0016667
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oxidoreductase activity, acting on a sulfur group of donors
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Catalysis of an oxidation-reduction (redox) reaction in which a sulfur-containing group acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor. |
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GO:0004362
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glutathione-disulfide reductase activity
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Catalysis of the reaction: 2 glutathione + NADP+ = glutathione disulfide + NADPH + H+. |
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GO:0015038
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glutathione disulfide oxidoreductase activity
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Catalysis of the reaction: 2 glutathione + electron acceptor = glutathione disulfide + electron donor. |
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GO:0015036
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disulfide oxidoreductase activity
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Catalysis of the reaction: substrate with reduced sulfide groups = substrate with oxidized disulfide bonds. |
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GO:0015037
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peptide disulfide oxidoreductase activity
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Catalysis of the reaction: a peptide with reduced sulfide groups = a peptide with oxidized disulfide bonds. |
