1.14.13.81 131-hydroxy-magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + O2 - 1.14.13.81 131-oxo-magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + H+ + O2 - 1.14.13.81 magnesium-protoporphyrin IX 13-monomethyl ester + 3 NADPH + 3 H+ + 3 O2 - 1.14.13.81 magnesium-protoporphyrin IX 13-monomethyl ester + 3 NADPH + 3 H+ + 3 O2 overall reaction 1.14.13.81 magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + H+ + O2 - 1.14.13.81 magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + H+ + O2 the enzyme is involved in the chlorophyll biosynthesis 1.14.13.81 magnesium-protoporphyrin IX monomethyl ester + NADPH + H+ + O2 - 1.14.13.81 magnesium-protoporphyrin IX monomethyl ester + NADPH + O2 - 1.14.13.81 magnesium-protoporphyrin monomethyl ester + NADPH + H+ + O2 bacteria are grown under anaerobic (dark green culture color) or semiaerobic (orange-red culture color) conditions and express the enzyme genes under both conditions to similar levels, though the enzyme is normally working under aerobic conditions 1.14.13.81 Mg-protoporphyrin IX monomethyl ester + O2 + NADPH + H+ disruption of the bchE gene leads to accumulation of Mg-protoporphyrin IX monomethyl ester and the divinyl form of Mg-protoporphyrin IX monomethyl ester 1.14.13.81 additional information the enzyme is involved in the chlorophyll biosynthetic pathway, the chlorophyll biosynthetic intermediates Mg-protoporphyrin IX and Mg-protoporphyrin IX monomethyl ester are used as a signal molecules in the chloroplast-to-nucleus signal transduction for regulation of nucleus-located Lhc genes encoding chlorophyll a/b binding proteins of the light-harvesting complex 1.14.13.81 additional information the enzyme converts Mg-protoporphyrin IX monomethyl ester into protochlorophylide, a reaction of the bacteriochlorophyll biosynthetic pathway 1.14.13.81 additional information transformation of the side chain of magnesium protoporphyrin IX monomethyl ester cyclase (MgPMe)