The enzyme, found in plants and cyanobacteria, catalyses the final step in the biosynthesis of phylloquinone (vitamin K1), an electron carrier associated with photosystem I. The enzyme is specific for the quinol form of the substrate, and does not act on the quinone form .
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
The enzyme, found in plants and cyanobacteria, catalyses the final step in the biosynthesis of phylloquinone (vitamin K1), an electron carrier associated with photosystem I. The enzyme is specific for the quinol form of the substrate, and does not act on the quinone form [3].
deficiency in phylloquinone (vitamin K1) methylation affects prenyl quinone distribution, Photosystem I abundance, and anthocyanin accumulation in the Arabidopsis AtmenG mutant
enzyme inactivation prevents the methylation step in the synthesis of phylloquinone and leads to the accumulation of 2-phytyl-1,4-naphthoquinone in Photosystem I
Sakuragi, Y.; Zybailov, B.; Shen, G.; Jones, A.D.; Chitnis, P.R.; van der Est, A.; Bittl, R.; Zech, S.; Stehlik, D.; Golbeck, J.H.; Bryant, D.A.
Insertional inactivation of the menG gene, encoding 2-phytyl-1,4-naphthoquinone methyltransferase of Synechocystis sp. PCC 6803, results in the incorporation of 2-phytyl-1,4-naphthoquinone into the A(1) site and alteration of the equilibrium constant between A(1) and F(x) in photosystem I
Deficiency in phylloquinone (vitamin K1) methylation affects prenyl quinone distribution, photosystem I abundance, and anthocyanin accumulation in the Arabidopsis AtmenG mutant