for prenyl donor selectivity in six dimethylallyl transferases significantly increased their activities toward geranyl diphosphate. Forty-two geranylated derivatives were obtained from 15 cyclic dipeptides by using the engineered enzymes. Taking cyclo-l-Trp-l-Trp as an example, the geranyl moiety can be attached to all seven possible positions of the indole nucleus. This study demonstrates a convenient
在六个二甲基烯丙基转移酶中
异戊二烯供体选择性的守门残基突变显着增加了它们对香叶基二
磷酸的活性。使用工程化酶从15个环状二肽中获得了42个Geranylated衍
生物。以环-1-Trp-1-Trp为例,香叶基部分可以连接到
吲哚核的所有七个可能位置。这项研究表明通过基于结构的可利用的二甲基烯丙基转移酶工程来增加香叶酰化产物的结构多样性的简便方法。