Flavonoids are important natural pharmaceutical compounds found in almost all plants showing antioxidant, anti-inflammatory, antifungal, and anti-carcinogenic properties. Biosynthesis of glycosylated natural compound results in the formation of an overwhelming number of natural glycosides with numerous applications like solubility, stability, and bioavailability. To produce glycosylated flavonoids, the engineered E.coli cells were fed with Quercetin and Keampferol, the flavonol(or3-hydroxyflavone) exogenously and product was analyzed to be 3-O-rhamnosyl-quercetin and 3-O-rhamnosyl-kaempferol. Hence, based on the above strategy, the same engineered E.coli BL21(DE3, △pgi) cells generated by deleting the glucose-phosphate isomerase(Pgi) gene and heterologously expressing TDP-glucosesynthase, TDP-glucose4,6-dehydratase, TDP-4-keto-6-deoxyglucose3,5-epimerase, TDP-glucose 4-ketoreductase and arGt-3 (3-O-glycosyltransferase) from various sources were used as whole cell biotransformation reaction by feeding with fisetin exogeneously. The product was isolated and analyzed to be glycosylated fisetin by HPLC, ESI-MS and LC/MS, ESI-MS/MS. Since the glycosylated flavonoids have shown enormous pharmaceutical properties, the recombinant host generated can be utilize to discover glycosylated flvonoids as well as glycosylated quercetin and kaempferol as drugs.
저자
Chang Beom Lee [ Department of Pharmaceutical, Institute of Biomolecule Reconstruction (iBR), Sun Moon University ]
Dinesh Simkhada [ Department of Pharmaceutical, Institute of Biomolecule Reconstruction (iBR), Sun Moon University ]
Nagendra Prasad Kurumbang [ Department of Pharmaceutical, Institute of Biomolecule Reconstruction (iBR), Sun Moon University ]
Hei Chan Lee [ Department of Pharmaceutical, Institute of Biomolecule Reconstruction (iBR), Sun Moon University ]
Jae Kyung Sohng [ Department of Pharmaceutical, Institute of Biomolecule Reconstruction (iBR), Sun Moon University ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.