Yeast Cannabinoid Biosynthesis for High-Yield Production
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Solution Overview
Problem
Producing cannabinoids in preparative amounts and high yield has been challenging.
Innovation Solution
Modifying yeast cells to express enzymes of the cannabinoid biosynthetic pathway, such as AAE, TKS, CBGaS, and OAC, and culturing them in the presence of agents that regulate enzyme expression to facilitate biochemical synthesis of cannabinoids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional cannabinoid production methods are used, then the process is simple, but the yield and efficiency are low
Solution Approach 1:
The patent divides the cannabinoid biosynthetic pathway into discrete enzymatic steps, each catalyzed by a specific enzyme (AAE, TKS, OAC, CBGaS). This segmentation allows for modular genetic engineering where each enzyme can be independently optimized and expressed in the host cell, thereby increasing overall productivity while managing complexity through systematic organization of the biosynthetic pathway components.
Solution Approach 2:
The patent uses heterologous host cells (such as yeast or bacterial cells) as intermediaries to produce cannabinoids. These host cells serve as living factories that express the cannabinoid biosynthetic enzymes, converting simple precursor molecules into complex cannabinoid products. This intermediary approach enables high-yield production without requiring complex extraction processes from Cannabis plants.
2Productivity
If heterologous enzymes are introduced to improve cannabinoid production, then the yield increases, but the genetic modification complexity increases
Solution Approach 1:
The genetic modification is segmented into distinct modules, with each module containing the gene for a specific enzyme (AAE, TKS, OAC, CBGaS) along with its regulatory elements. This modular approach allows for systematic introduction and optimization of each enzymatic function independently, reducing the overall complexity of genetic modification while achieving high cannabinoid production efficiency.
Solution Approach 2:
The patent optimizes various parameters including enzyme expression levels, promoter strength, ribosome binding sites, and codon usage to maximize cannabinoid production. By systematically adjusting these genetic parameters, the patent achieves high productivity while managing the complexity of genetic modification through data-driven optimization rather than trial-and-error approaches.
3Manufacturing precision
If multiple enzymes are expressed to achieve high selectivity, then the chemical selectivity improves, but the metabolic pathway complexity increases
Solution Approach 1:
The cannabinoid biosynthetic pathway is segmented into specific enzymatic steps that ensure high chemical selectivity. Each enzyme (AAE for acyl activation, TKS for tetraketide synthesis, OAC for cyclization, CBGaS for cannabigerolic acid formation) performs a dedicated function with high substrate specificity. This segmentation ensures that each transformation is highly selective, producing the desired cannabinoid products with minimal byproducts, while the overall pathway complexity is managed through the natural efficiency of the biosynthetic route.
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
Enables efficient and selective production of cannabinoids, allowing for high yields and improved production methods.
Implementation Method 1
The host cell may contain one or more heterologous nucleic acids that encode an acyl activating enzyme (AAE), a tetraketide synthase (TKS), a cannabigerolic acid synthase (CBGaS), and/or an olivetolic acid cyclase (OAC)
Data Source
AI summary
The compositions and methods of the disclosure can be used to produce a cannabinoid in a host cell, such as a yeast cell. For example, the disclosure features host cells (e.g., yeast cells) modified to express one or more enzymes of a cannabinoid biosynthetic pathway, such as an acyl activating enzyme (AAE), a tetraketide synthase (TKS), a cannabigerolic acid synthase (CBGaS), and/or an olivetolic acid cyclase (OAC).