产品内容
本酶催化的反应为(1) S-Adenosyl-L-Methionine + 8,12-Diethyl-3-Vinylbacteriochlorophyllide D = S-Adenosyl-L-Homocysteine + 12-Ethyl-8-Propyl-3-Vinylbacteriochlorophyllide D;;(2) S-Adenosyl-L-Methionine + 12-Ethyl-8-Propyl-3-Vinylbacteriochlorophyllide D = S-Adenosyl-L-Homocysteine + 12-Ethyl-8-Isobutyl-3-Vinylbacteriochlorophyllide D,系统名称为S-Adenosyl-L-Methionine:8,12-Diethyl-3-Vinylbacteriochlorophyllide-D C-82-Methyltransferase,该酶存在于绿硫细菌(绿菌科)和绿色丝状细菌(绿曲挠菌科)中,是一种自由基S-腺苷-L-甲硫氨酸(AdoMet)酶,含[4Fe-4S]簇。它在c、d和e型细菌叶绿素的C-82位添加一个或两个甲基。这些甲基化在微调绿色体中细菌叶绿素聚集体的结构排布中发挥作用,因此直接影响绿色体的吸收特性。