Compound as reactive (1)
S-adenosyl-L-methionine + demethylmenaquinol-8 → S-adenosyl-L-homocysteine + menaquinol-8 + H+
Compound as product (2)
H+ + 1,4-dihydroxy-6-naphthoate + all-trans-octaprenyl diphosphate → demethylmenaquinol-8 + diphosphate + CO2
1,4-dihydroxy-2-naphthoate + H+ + all-trans-octaprenyl diphosphate → demethylmenaquinol-8 + diphosphate + CO2
Reversible reaction (1)
an oxidized electron donor + demethylmenaquinol-8 ↔ 2-demethylmenaquinone-8 + a reduced electron donor