Morphinan biosynthesis in opium poppy requires a P450-oxidoreductase fusion protein - Winzer, T; Kern, M; King, A J; Larson, T R; Teodor, R I; Donninger, S L; Li, Y; Dowle, A A; Cartwright, J; Bates, R; Ashford, D; Thomas, J; Walker, C; Bowser, T A; Graham, I A (Science, 2015)