Fisetin (3,7,3’,4’-tetrahydroxyflavone) belongs to the flavonol subgroup of flavonoids and is found in several fruits and vegetables. Fisetin has high medicinal value and is useful natural agent against cancer and evaluated for its potential inhibitory role against cancer on cells and animal models. To efficiently diversify the therapeutic uses of fisetin, Escherichia coli was harnessed as a production factory and E. coli BL21(DE3)/ΔpgiΔzwfΔgalU mutant was engineered by overexpressing thymidine diphosphate (dTDP)-D-glucose synthase (tgs), dTDP-D-glucose 4,6-dehydratase (dh), and a sugar aminotransferase (wecE) from different sources to produce a pool of dTDP-4-amino-4,6-dideoxy-D-gal actose in the cell cytosol. To this recombinant mutant, two Arabidopsis thaliana glycosyltransferases (ArGT-3 and ArGT-4) were overexpressed to generate two glycosylation platforms (E. coli BL21(DE3)/ΔpgiΔzwfΔgalUTDW-3 and E. coli BL21(DE3)/Δ pgiΔzwfΔgalUTDW-4), which were accessed for the glycosylation of fisetin. As a result, one of the two systems, E. coli BL21(DE3)/ΔpgiΔzwfΔgalUTDW-3, was able to conjugate 4-amino-4,6-dideoxy-D-galactose sugar at the 3-OH position of fisetin, producing an unnatural fisetin 3-O-4-amino-4,6-dideoxy-D-galactoside.
저자
Biplav Shrestha [ Department of Life Science and Biochemical Engineering ]
Ramesh Prasad Pandey [ Department of Life Science and Biochemical Engineering, Department of BT-Convergent Pharmaceutical Engineering SunMoon University, 70 Sunmoon-ro 221, Tangjeong-myeon, Asan-si, Chungnam 31460, Korea ]
PrakashParajuli [ Department of Life Science and Biochemical Engineering ]
SumangalaDarsandhari [ Department of Life Science and Biochemical Engineering ]
Jae Kyung Sohng [ Department of Life Science and Biochemical Engineering, Department of BT-Convergent Pharmaceutical Engineering SunMoon University, 70 Sunmoon-ro 221, Tangjeong-myeon, Asan-si, Chungnam 31460, Korea ]
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.