- The Anopheles gambiae tryptophan oxygenase gene expressed from a baculovirus promoter complements Drosophila melanogaster vermilion. Besansky, N.J., Mukabayire, O., Benedict, M.Q., Rafferty, C.S., Hamm, D.M., Mcnitt, L. Insect Biochem. Mol. Biol. (1997)