产品内容
本酶催化的反应为Magnesium-Protoporphyrin IX 13-Monomethyl Ester + 3 S-Adenosyl-L-Methionine + H2O = 3,8-Divinyl Protochlorophyllide A + 3 5'-Deoxyadenosine + 3 L-Methionine (Overall Reaction);;(1a) Magnesium-Protoporphyrin IX 13-Monomethyl Ester + S-Adenosyl-L-Methionine + H2O = 131-Hydroxy-Magnesium-Protoporphyrin IX 13-Monomethyl Ester + 5'-Deoxyadenosine + L-Methionine;;(1b) 131-Hydroxy-Magnesium-Protoporphyrin IX 13-Monomethyl Ester + S-Adenosyl-L-Methionine = 131-Oxo-Magnesium-Protoporphyrin IX 13-Monomethyl Ester + 5'-Deoxyadenosine + L-Methionine;;(1c) 131-Oxo-Magnesium-Protoporphyrin IX 13-Monomethyl Ester + S-Adenosyl-L-Methionine = 3,8-Divinyl Protochlorophyllide A + 5'-Deoxyadenosine + L-Methionine，系统名称为Magnesium-Protoporphyrin-IX 13-Monomethyl Ester,S-Adenosyl-L-Methionine:H2O Oxidoreductase (Hydroxylating)，这种自由基AdoMet酶参与厌氧细菌中脱镁叶绿素a的生物合成，催化异环的形成。含一个[4Fe-4S]簇和钴胺素辅因子。好氧生物中由依赖氧的 EC 1.14.13.81，镁-原卟啉IX单甲酯（氧化型）环化酶实现同样的转化。某些兼性光合细菌（如 Rubrivivax gelatinosus）同时拥有这两种酶。
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