Site of Prenylation Reaction in Synthesis of Phylloquinone (Vitamin K1) by Spinach Chloroplasts
b'In spinach chloroplasts, 1,4-dihydroxy-2-naphthoate is prenylated by phytyldiphosphate and subsequently methylated by S-adenosylmethionine to form phylloquinol. The site of the prenylation reaction is the chloroplast envelope membrane.'