ID 1.6.5.12 DE demethylphylloquinone reductase. CA demethylphylloquinone + H(+) + NADPH = demethylphylloquinol + NADP(+). CC -!- The enzyme, found in plants and cyanobacteria, is involved in the CC biosynthesis of phylloquinone (vitamin K1), an electron carrier CC associated with photosystem I. DR P73735, NDBB_SYNY3 ; Q8GXR9, NDC1_ARATH ; //