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Schematic of the metabolic pathways in which GGR is involved. GGR catalyzes six different reactions, as indicated in this illustration. The structure of chlorophyll a is representatively depicted. GPP, geranyl-diphosphate; DHGGPP, dihydrogeranylgeranyl-diphosphate; THGGPP, tetrahydrogeranylgeranyl-diphosphate; Phytyl-PP, phytyl-diphosphate.
