P450s controlling metabolic bifurcations in plant terpene specialized metabolism. Banerjee, A. & Hamberger, B. DOI 10.1007/s11101-017-9530-4:DOI 10.1007/s11101-017-9530-4, 2017.
P450s controlling metabolic bifurcations in plant terpene specialized metabolism [pdf]Paper  doi  abstract   bibtex   
Catalyzing stereo- and regio-specific oxi- dation of inert hydrocarbon backbones, and a range of more exotic reactions inherently difficult in formal chemical synthesis, cytochromes P450 (P450s) offer outstanding potential for biotechnological engineer- ing. Plants and their dazzling diversity of specialized metabolites have emerged as rich repository for functional P450s with the advances of deep transcrip- tomics and genome wide discovery. P450s are of outstanding interest for understanding chemical diver- sification throughout evolution, for gaining mechanis- tic insights through the study of their structure--function relationship, and for exploitation in Synthetic Biology. In this review, we highlight recent develop- ments and examples in the discovery of plant P450s involved in the biosynthesis of industrially relevant monoterpenoids, sesquiterpenoids, diterpenoids and triterpenoids, throughout 2016 and early 2017. Exam- ples were selected to illustrate the spectrum of value from commodity chemicals, flavor and fragrance compounds to pharmacologically active terpenoids. We focus on a recently emerging theme, where P450s control metabolic bifurcations and chemical diversity of the final product profile, either within a pathway, or through neo-functionalization in related species. The implications may inform approaches for rational assembly of recombinant pathways, biotechnological production of high value terpenoids and generation of novel chemical entities.

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