Bifunctional abietadiene synthase, chloroplastic
UniProtKB accession: Q38710
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Go to UniProtKB: Q38710
UniProtKB description: Involved in defensive oleoresin formation in conifers in response to insect attack or other injury. Involved in diterpene (C20) olefins biosynthesis. Bifunctional enzyme that catalyzes two sequential cyclizations of geranylgeranyl diphosphate (GGPP) to abietadiene. The copalyl diphosphate (CPP) intermediate diffuses freely between the 2 active sites in the enzyme. Changes in reaction pH, but not salt concentration, influence the relative proportion of the major products of the enzyme, abitadiene, levopimaradiene and neoabitadiene.
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