Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 352, P. 123177 - 123177
Published: Dec. 25, 2024
Language: Английский
Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 352, P. 123177 - 123177
Published: Dec. 25, 2024
Language: Английский
Journal of Chromatography A, Journal Year: 2025, Volume and Issue: 1748, P. 465865 - 465865
Published: March 11, 2025
Language: Английский
Citations
1Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160239 - 160239
Published: Feb. 1, 2025
Language: Английский
Citations
0Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: 73(9), P. 5376 - 5384
Published: Feb. 18, 2025
Biological production of human milk oligosaccharides (HMOs) using metabolically engineered strains is a research hotspot in food biotechnology, but less effort has been made on the biological sialylated complex HMOs. Sialyllacto-N-tetraose c only monosialylated HMO top 15 In this study, metabolic pathway LST was constructed Escherichia coli BL21(DE3) by introducing three sequential glycosyltransferases: β1,3-N-acetylglucosaminyltransferase, β1,4-galactosyltransferase, and α2,6-sialyltransferase. The cytidine 5′-monophospho (CMP)-N-acetylneuraminic acid (Neu5Ac) enhanced to improve production. β1,4-galactosyltransferase from Helicobacter pylori J99 (HpGalT) α2,6-sialyltransferase Vespertiliibacter pulmonis (ED6ST) were screened as pair key glycosyltransferases for enhancing final strain could produce 1.718 9.745 g/L shake-flask fed-batch cultivation, respectively, indicating feasibility efficient biosynthesis
Language: Английский
Citations
0Process Biochemistry, Journal Year: 2025, Volume and Issue: unknown
Published: March 1, 2025
Language: Английский
Citations
0Journal of Agricultural and Food Chemistry, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 19, 2024
Difucosyllactose (DFL), an important kind of fucosylated human milk oligosaccharides (HMOs), has garnered considerable attention due to its excellent physiological activities in infants. Previously, we achieved de novo biosynthesis DFL; however, substantial residual intermediates fucosyllactoses (FL) were detected. In this study, DFL was optimized, and FL reduced by regulating metabolic pathways. Different plasmid combinations used regulate gene expression, achieving optimal flux balance between 2′-FL DFL. The expression level key enzyme α-1,3-fucosyltransferase (α-1,3-FT, FucTa) then enhanced increasing copy number integrating fucTa into the chromosome. Exocytosis deleting sugar efflux transporter setA gene, thereby minimizing FL. Finally, strain BSF41 produced 55.3 g/L with only 2.59 a 5 L fermentor, representing highest reported titer date. This study provides foundation for advancing HMOs.
Language: Английский
Citations
1Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 352, P. 123177 - 123177
Published: Dec. 25, 2024
Language: Английский
Citations
1