ID 1.6.5.12 DE Demethylphylloquinone reductase. CA Demethylphylloquinone + NADPH = demethylphylloquinol + NADP(+). CF FAD. CC -!- The enzyme, found in plants and cyanobacteria, is involved in the CC biosynthesis of phylloquinone (vitamin K(1)), an electron carrier CC associated with photosystem I. DR P73735, NDBB_SYNY3 ; Q8GXR9, NDC1_ARATH ; //