2.6.1.86 chorismate + L-glutamine the net conversion of chorismate to 3-enolpyruvoylanthranilate by the tandem action of SgcD and SgcG establishes a new branching point in chorismate metabolism leading to synthesis of C-1027, an enediyne antitumor antibiotic 2.6.1.86 additional information the enzyme participates in the biosynthesis of phenazine, a precursor for several compounds with antibiotic activity