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Why is "Glutathione"considered as a reducing agent?

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Biologically, GSH reduces the disulfide bonds formed within cytoplasmic proteins to cysteines and reacts to other oxidized GSH to an oxidized form of glutathione disulfide (GSSG), also called L(-)-glutathione. It is oxidized by glutathione reductase by using NADPH as an electron donor
User Dibya Sahoo
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