Balancing glucose and oxygen uptake rates to enable high amorpha-4,11-diene production in Escherichia coli via the methylerythritol phosphate pathway
| Autor: | Vikas Patil, Christine Nicole S. Santos, Stephen Sarria, Parayil Kumaran Ajikumar, Ralf Takors |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Amorpha-4 11-diene Glucose uptake Artemisia annua Bioengineering medicine.disease_cause 01 natural sciences Applied Microbiology and Biotechnology 03 medical and health sciences chemistry.chemical_compound Antimalarials Oxygen Consumption 010608 biotechnology medicine Escherichia coli Artemisinin Polycyclic Sesquiterpenes biology Phosphate biology.organism_classification Terpenoid Oxygen 030104 developmental biology Erythritol Glucose chemistry Biochemistry Yield (chemistry) Sugar Phosphates Biotechnology medicine.drug |
| Zdroj: | Biotechnology and bioengineeringREFERENCES. 118(3) |
| ISSN: | 1097-0290 |
| Popis: | Amorpha-4,11-diene (AMD4,11) is a precursor to artemisinin, a potent antimalarial drug that is traditionally extracted from the shrubs of Artemisia annua. Despite significant prior efforts to produce artemisinin and its precursors through biotechnology, there remains a dire need for more efficient biosynthetic routes for its production. Here, we describe the optimization of key process conditions for an Escherichia coli strain producing AMD4,11 via the native methylerythritol phosphate (MEP) pathway. By studying the interplay between glucose uptake rates and oxygen demand, we were able to identify optimal conditions for increasing carbon flux through the MEP pathway by manipulating the availability of NADPH required for terpenoid production. Installation of an optimal qO2 /qglucose led to a 6.7-fold increase in product titers and a 6.5-fold increase in carbon yield. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text