Microfluidic Protein Evolution for Rapid Sequence Optimization
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Solution Overview
Problem
Existing methods for protein evolution are slow and inefficient, lacking the ability to rapidly identify optimized protein sequences for therapeutic or synthetic biologics discovery and production.
Innovation Solution
A microfluidic system that imports beads with nucleic acid sequences encoding protein variants, allows for expression and assay of proteins, and uses a computational component to design improved sequences based on phenotypic readouts, incorporating a barcode detection system and protein aggregation beads for efficient protein capture and analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional methods for protein evolution are used, then the process is simple and easy to operate, but the productivity is low and the process is slow
Solution Approach 1:
The system segments the protein evolution process into discrete modular components: nucleic acid synthesis module, bead coupling module, microfluidic incubation module, and detection module. Each module performs a specific function independently, enabling high-throughput parallel processing of multiple protein variants while maintaining operational simplicity through standardized interfaces between modules.
Solution Approach 2:
The patent introduces several intermediary elements to bridge different functional modules: beads serve as intermediaries to carry and organize nucleic acid sequences during synthesis and incubation; microfluidic channels act as intermediaries to transport reagents and samples between modules; and barcodes serve as intermediaries to link nucleic acid sequences with their corresponding protein expression outcomes for detection and analysis.
2Productivity
If high-throughput protein screening is implemented, then the productivity increases, but the loss of time for assay and detection increases
Solution Approach 1:
The system performs preliminary actions by pre-synthesizing and pre-coupling large libraries of diverse nucleic acid sequences to beads before the actual protein expression and screening process. This allows the expression and detection phases to proceed in parallel for multiple variants simultaneously, reducing the cumulative time required for high-throughput screening while maintaining productivity.
Solution Approach 2:
The microfluidic system enables continuous flow of reagents and samples through the incubation and detection modules, eliminating idle time between processing steps. The system maintains continuous useful action by continuously synthesizing proteins on beads, continuously transporting them through the microfluidic channels, and continuously detecting expression outcomes, thereby reducing total assay time while increasing throughput.
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
Facilitates rapid evolution of proteins by correlating nucleic acid sequences with desired properties, enabling the design of optimized sequences for protein production, thereby enhancing the efficiency of therapeutic and synthetic biologics development.
Implementation Method 1
a direct flow of the first liquid medium into the second liquid medium in the interior space is impeded while diffusive mixing of the first liquid medium with the second liquid medium in the interior space is allowed
Data Source
AI summary
Systems, methods, and kits therefor, enabling rapid protein evolution are described herein. A system useful in the methods described herein include a DNA synthesis component; a microfluidic system including a microfluidic device having a microfluidic channel and sequestration pens; and a computing component, which is configured to analyze assay results and, based upon the analysis, design improved DNA sequences for iterative protein evolution. The microfluidic system is configured to permit correlation of DNA sequence on a bead to its location within the microfluidic device, permit cell free protein expression of a DNA sequence captured to a bead, and to permit assay of the protein so produced.