产品内容
本酶催化的反应为(1) 3-Deacetyl-3-Vinylbacteriochlorophyllide A + 2 Oxidized Ferredoxin [Iron-Sulfur] Cluster + ADP + Phosphate = Chlorophyllide A + 2 Reduced Ferredoxin [Iron-Sulfur] Cluster + ATP + H2O + 2 H+;;(2) Bacteriochlorophyllide A + 2 Oxidized Ferredoxin [Iron-Sulfur] Cluster + ADP + Phosphate = 3-Acetyl-3-Devinylchlorophyllide A + 2 Reduced Ferredoxin [Iron-Sulfur] Cluster + ATP + H2O + 2 H+;;(3) 3-Deacetyl-3-(1-Hydroxyethyl)bacteriochlorophyllide A + 2 Oxidized Ferredoxin [Iron-Sulfur] Cluster + ADP + Phosphate = 3-Devinyl-3-(1-Hydroxyethyl)chlorophyllide A + 2 Reduced Ferredoxin [Iron-Sulfur] Cluster + ATP + H2O + 2 H+;;系统名称为Bacteriochlorophyllide-A:ferredoxin 7,8-Oxidoreductase，该酶与 EC 1.1.1.396，细菌脱镁叶绿素a脱氢酶和 EC 4.2.1.165，脱镁叶绿素a 31-水合酶一起，参与脱镁叶绿素a向细菌脱镁叶绿素a的转化。这些酶可以按多种顺序作用，形成不同的中间体，但三个酶连续作用的终产物总是细菌脱镁叶绿素a。该酶催化B环的反式还原；产物具有(7R,8R)构型。此外，该酶还具有 EC 1.3.7.13，3,8-二乙烯基原脱镁叶绿素a 8-乙烯基还原酶（铁氧还蛋白）的潜在活性 [4]。该酶含一个[4Fe-4S]簇，结构上类似催化ATP驱动还原的固氮酶Fe蛋白/MoFe蛋白复合体（EC 1.18.6.1）。
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