Recombinant Host Cells Expressing MAE1 Transport Proteins
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Solution Overview
Problem
Current petrochemical-based production routes for malonate and malonate-derived compounds are low-yielding, environmentally damaging, and dependent on non-renewable feedstocks, with a need for improved biocatalytic conversion of renewable feedstocks into malonate and subsequent purification and preparation of downstream chemicals.
Innovation Solution
Genetic modifications in recombinant host cells, specifically using nucleic acids encoding MAE1 transport proteins, enhance malonate production, with suitable MAE1 transport proteins obtained from eukaryotic organisms like Aspergillus species, to increase titer and yield, and recombinant expression vectors are used to express these proteins in host cells such as Pichia kudriavzevii for efficient malonate production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If petrochemical-based production routes are used for malonate, then production capacity is maintained, but environmental damage increases and dependency on non-renewable feedstocks worsens
Solution Approach 1:
The patent replaces petrochemical-based mechanical/chemical production systems with a biological system using recombinant host cells. The host cells are genetically modified to express transport proteins that enable them to produce malonate from renewable feedstocks, substituting the traditional petrochemical process with a biologically-based system that reduces environmental harm while maintaining productivity
Solution Approach 2:
The patent changes the fundamental parameters of the production system by switching from non-renewable petroleum feedstocks to renewable carbon sources. The genetic modification of host cells alters their metabolic parameters to enable malonate production, transforming the production pathway from a harmful chemical process to a sustainable biological process
2Productivity
If petrochemical-based production routes are used for malonate, then production experience is available, but low yield and high cost persist
Solution Approach 1:
The recombinant host cells are engineered to self-produce malonate through their own metabolic processes. The transport proteins expressed in the host cells enable the cells to autonomously convert renewable feedstocks into malonate, eliminating the need for complex external chemical processing steps and reducing production costs while improving yield
3Object-affected harmful factors
If existing biocatalytic conversion methods are used, then renewable feedstocks are utilized, but malonate production efficiency is insufficient
Solution Approach 1:
The patent introduces transport proteins that create a feedback mechanism within the host cell system. These proteins regulate the transport of substrates and products, optimizing the metabolic flux toward malonate production. This feedback control enhances production efficiency while maintaining the environmental benefits of using renewable feedstocks
Data Source
AI summary
Compositions and methods for producing malonate in recombinant host cells in order to increase malonate titer, yield, and/or productivity are provided. Recombinant host cells comprising nucleic acids encoding MAE1 transport proteins that increase production of malonate by the host cell and vectors for expressing MAE1 transport proteins that increase production of malonate by the host cell are also disclosed.