esike d GSH, having the structure of y-Glu-Cys-Gly is the redox buffer in cells, cycling between GSH (reduced form) and GSSg (oxidized form) The tripeptide is synthesized using specific enzymes(not ribosomes)How is glutathione (GSH) synthesized? • GSH, having the structure of g-Glu-Cys-Gly, is the redox buffer in cells, cycling between GSH (reduced form) and GSSG (oxidized form); • The tripeptide is synthesized using specific enzymes (not ribosomes)