Glutathione Peroxidases contain which essential micro-mineral?

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Multiple Choice

Glutathione Peroxidases contain which essential micro-mineral?

Explanation:
Glutathione peroxidases are selenoenzymes, meaning their activity depends on selenium at the active site. The enzyme’s catalytic center contains selenocysteine, an amino acid that incorporates selenium and enables reduction of hydrogen peroxide and lipid hydroperoxides using glutathione. Without enough selenium, these enzymes work poorly, leading to increased oxidative stress. Among the minerals listed, selenium is the one essential for this enzyme. Potassium is just an electrolyte, manganese is a cofactor for other enzymes like MnSOD, and cobalt is tied to vitamin B12 rather than GPx.

Glutathione peroxidases are selenoenzymes, meaning their activity depends on selenium at the active site. The enzyme’s catalytic center contains selenocysteine, an amino acid that incorporates selenium and enables reduction of hydrogen peroxide and lipid hydroperoxides using glutathione. Without enough selenium, these enzymes work poorly, leading to increased oxidative stress. Among the minerals listed, selenium is the one essential for this enzyme. Potassium is just an electrolyte, manganese is a cofactor for other enzymes like MnSOD, and cobalt is tied to vitamin B12 rather than GPx.

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