Optimization of recombinant expression enables discovery of novel cytochrome P450 activity in rice diterpenoid biosynthesis.

ABSTRACT: The oxygenation reactions catalyzed by cytochromes P450 (CYPs) play critical roles in plant natural products biosynthesis. At the same time, CYPs are one of most challenging enzymes to functionally characterize due to the difficulty of recombinantly expressing these membrane-associated monooxygenases. In the course of investigating rice diterpenoid biosynthesis, we have developed a synthetic biology approach for functional expression of relevant CYPs in Escherichia coli. In certain cases, activity was observed for only one of two closely related paralogs although it seems clear that related reactions are required for production of the known diterpenoids. Here, we report that optimization of the recombinant expression system enabled characterization of not only these previously recalcitrant

SUBMITTER: Kitaoka N 

PROVIDER: S-EPMC4546517 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature