Vitamin E and Metabolic Health: Relevance of Interactions with Other Micronutrients Glutathione Sepharose 4 Fast Flow GST tagged protein purification resin Cytiva Glutathione is nicknamed the master antioxidant because it is the most abundant, body produced (endogenous) antioxidant found in every cell, essential for neutralizing free radicals, recycling other antioxidants (like Vitamin C and E), Engineering yeast expression platforms: Advanced strategies for heterologous protein production and glycosylation modification ScienceDirect