TY - JOUR
T1 - Synthesis of C-glucosylated octaketide anthraquinones in Nicotiana benthamiana using a multispecies-based biosynthetic pathway
AU - Andersen-Ranberg, Johan
AU - Kongstad, Kenneth Thermann
AU - Nafisi, Majse
AU - Stærk, Dan
AU - Okkels, Finn T.
AU - Mortensen, Uffe H.
AU - Møller, Birger Lindberg
AU - Frandsen, Rasmus J.N.
AU - Kannangara, Rubini Maya
PY - 2017/10/5
Y1 - 2017/10/5
N2 - Carminic acid is a C-glucosylated octaketide anthraquinone and the main constituent of the natural dye carmine (E120), possessing unique coloring, stability, and solubility properties. Despite being used since ancient times, longstanding efforts to elucidate its route of biosynthesis have been unsuccessful. Herein, a novel combination of enzymes derived from a plant (Aloe arborescens, Aa), a bacterium (Streptomyces sp. R1128, St), and an insect (Dactylopius coccus, Dc) that allows for the biosynthesis of the C-glucosylated anthraquinone, dcII, a precursor for carminic acid, is reported. The pathway, which consists of AaOKS, StZhuI, StZhuJ, and DcUGT2, presents an alternative biosynthetic approach for the production of polyketides by using a type III polyketide synthase (PKS) and tailoring enzymes originating from a type II PKS system. The current study showcases the power of using transient expression in Nicotiana benthamiana for efficient and rapid identification of functional biosynthetic pathways, including both soluble and membrane-bound enzymes.
AB - Carminic acid is a C-glucosylated octaketide anthraquinone and the main constituent of the natural dye carmine (E120), possessing unique coloring, stability, and solubility properties. Despite being used since ancient times, longstanding efforts to elucidate its route of biosynthesis have been unsuccessful. Herein, a novel combination of enzymes derived from a plant (Aloe arborescens, Aa), a bacterium (Streptomyces sp. R1128, St), and an insect (Dactylopius coccus, Dc) that allows for the biosynthesis of the C-glucosylated anthraquinone, dcII, a precursor for carminic acid, is reported. The pathway, which consists of AaOKS, StZhuI, StZhuJ, and DcUGT2, presents an alternative biosynthetic approach for the production of polyketides by using a type III polyketide synthase (PKS) and tailoring enzymes originating from a type II PKS system. The current study showcases the power of using transient expression in Nicotiana benthamiana for efficient and rapid identification of functional biosynthetic pathways, including both soluble and membrane-bound enzymes.
U2 - 10.1002/cbic.201700331
DO - 10.1002/cbic.201700331
M3 - Journal article
C2 - 28719729
SN - 1439-4227
VL - 18
SP - 1893
EP - 1897
JO - ChemBioChem
JF - ChemBioChem
IS - 19
ER -