ID 4.3.3.9 DE indigoidine synthase. CA 2 FMN + 2 L-glutamine + 2 ATP + O2 = indigoidine + 2 FMNH2 + 2 AMP + CA 2 diphosphate + 2 H2O. CC -!- The enzyme, found in a number of bacterial strains, is a non- CC ribosomal peptide synthase (NRPS). CC -!- The enzyme forms 3-amino-1,5-dihydropyridine-2,6-dione, which CC undergoes spontaneous oxidation to form the blue pigment indigoidine. DR Q9L391, INDGS_DICD3; Q1MWN4, INDGS_STRLA; //