Experimental design-aided systematic pathway optimization of glucose uptake and deoxyxylulose phosphate pathway for improved amorphadiene production

Verfasser / Beitragende:
[Congqiang Zhang, Ruiyang Zou, Xixian Chen, Gregory Stephanopoulos, Heng-Phon Too]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/9(2015-05-01), 3825-3837
Format:
Artikel (online)
ID: 605499977
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024 7 0 |a 10.1007/s00253-015-6463-y  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6463-y 
245 0 0 |a Experimental design-aided systematic pathway optimization of glucose uptake and deoxyxylulose phosphate pathway for improved amorphadiene production  |h [Elektronische Daten]  |c [Congqiang Zhang, Ruiyang Zou, Xixian Chen, Gregory Stephanopoulos, Heng-Phon Too] 
520 3 |a Artemisinin is a potent antimalarial drug; however, it suffers from unstable and insufficient supply from plant source. Here, we established a novel multivariate-modular approach based on experimental design for systematic pathway optimization that succeeded in improving the production of amorphadiene (AD), the precursor of artemisinin, in Escherichia coli. It was initially found that the AD production was limited by the imbalance of glyceraldehyde 3-phosphate (GAP) and pyruvate (PYR), the two precursors of the 1-deoxy-d-xylulose-5-phosphate (DXP) pathway. Furthermore, it was identified that GAP and PYR could be balanced by replacing the phosphoenolpyruvate (PEP)-dependent phosphotransferase system (PTS) with the ATP-dependent galactose permease and glucose kinase system (GGS) and this resulted in fivefold increase in AD titer (11 to 60mg/L). Subsequently, the experimental design-aided systematic pathway optimization (EDASPO) method was applied to systematically optimize the transcriptional expressions of eight critical genes in the glucose uptake and the DXP and AD synthesis pathways. These genes were classified into four modules and simultaneously controlled by T7 promoter or its variants. A regression model was generated using the four-module experimental data and predicted the optimal expression ratios among these modules, resulting in another threefold increase in AD titer (60 to 201mg/L). This EDASPO method may be useful for the optimization of other pathways and products beyond the scope of this study. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Amorphadiene  |2 nationallicence 
690 7 |a Experimental design-aided systematic pathway optimization  |2 nationallicence 
690 7 |a Multivariate-modular approach  |2 nationallicence 
690 7 |a Deoxyxylulose phosphate pathway  |2 nationallicence 
690 7 |a The phosphotransferase system  |2 nationallicence 
700 1 |a Zhang  |D Congqiang  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
700 1 |a Zou  |D Ruiyang  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
700 1 |a Chen  |D Xixian  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
700 1 |a Stephanopoulos  |D Gregory  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
700 1 |a Too  |D Heng-Phon  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/9(2015-05-01), 3825-3837  |x 0175-7598  |q 99:9<3825  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6463-y  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-015-6463-y  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Congqiang  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zou  |D Ruiyang  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chen  |D Xixian  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Stephanopoulos  |D Gregory  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Too  |D Heng-Phon  |u Chemical and Pharmaceutical Engineering, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore, Singapore  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/9(2015-05-01), 3825-3837  |x 0175-7598  |q 99:9<3825  |1 2015  |2 99  |o 253