Recombinant Microorganisms for Ergoline Biosynthesis
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Solution Overview
Problem
Current methods for producing ergolines and ergot alkaloids are poorly scalable, environmentally unfriendly, and yield low quantities, with biosynthetic approaches being unsuccessful in producing these molecules effectively.
Innovation Solution
The use of specific polynucleotide sequences encoding enzymes and recombinant cells to biosynthesize ergolines, including precursors and derivatives, through the expression of genes from an ergot alkaloid synthesis (EAS) gene cluster or associated enzymes, allowing for improved yield and scalability in a more environmentally friendly manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If industrial chemical synthesis methods are used to produce ergolines, then production capacity is achieved, but environmental friendliness deteriorates due to large volumes of hazardous solvents and waste products
Solution Approach 1:
The patent replaces chemical synthesis methods with biological synthesis using recombinant microorganisms. The mechanical/biological system (enzymatic pathways in living cells) substitutes for the chemical system (industrial synthesis with solvents), eliminating hazardous waste while maintaining production capacity through scalable fermentation processes
Solution Approach 2:
The patent changes the fundamental parameters of the production system by transitioning from abiotic chemical reactions to biotic enzymatic reactions. This involves changing the reaction medium from organic solvents to aqueous cellular environments, changing catalysts from chemical reagents to enzymatic pathways, and changing the production scale-up method from chemical reactor expansion to fermentation optimization
2Object-affected harmful factors
If biosynthetic approaches are used to produce ergolines, then environmental friendliness is improved, but production yield deteriorates to very low quantities
Solution Approach 1:
The patent segments the ergoline biosynthetic pathway into discrete enzymatic steps and introduces them individually or in clusters into recombinant microorganisms. By dividing the complex biosynthetic pathway into manageable genetic components (genes encoding specific enzymes), the system achieves controlled expression and optimization of each step, thereby improving overall yield while maintaining environmental benefits
Solution Approach 2:
The patent uses universal recombinant expression systems that can accommodate multiple biosynthetic genes from different sources. The recombinant microorganisms serve as universal factories that can express heterologous ergoline pathway genes alongside native metabolic pathways, enabling scalable production while maintaining the environmental advantages of biological systems
3Reliability
If starting material from original fungus is used for synthesis, then pathway authenticity is maintained, but scalability deteriorates due to difficulty in growth to required amounts
Solution Approach 1:
The patent introduces intermediary recombinant microorganisms that serve as mediators between the original fungal biosynthetic pathway and industrial-scale production requirements. These engineered hosts carry the essential ergoline pathway genes from the original fungus but provide a scalable, controlled environment for high-volume production, bridging the gap between pathway authenticity and manufacturing scalability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the efficient and reliable production of ergolines and their derivatives in recombinant microorganisms, overcoming the limitations of existing methods by achieving higher yields and scalability while being environmentally friendly.
Implementation Method 1
polynucleotide sequences that encode amino acid sequences (e.g., enzymes, transporters, etc.) that are useful in the biosynthesis of an ergoline
Data Source
AI summary
Provided are non-naturally occurring polynucleotide sequences that encode for polypeptides useful in ergoline biosynthesis, as well as the non-naturally occurring polypeptide sequences. Also provided are recombinant host cell and methods for microbial biosynthesis of an ergoline, or a precursor or metabolite thereof, using the recombinant host cell.