Virus-Derived Construct Plasmid Libraries Using Restriction-Ligation Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for producing virus-derived construct plasmids are inefficient and require significant effort to improve plasmid performance, such as the amount produced and purity of virus-derived constructs.
Innovation Solution
A method involving a set of starting plasmids treated with restriction enzymes to form cleaved alternative unit nucleic acid fragments, which are then ligated and integrated into a transformed organism to produce virus-derived construct plasmids, allowing for the selection of plasmids with desired functions and improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If virus-derived construct plasmids are individually designed and produced using conventional methods, then each plasmid can be customized, but the production efficiency is low and significant effort is required to improve plasmid performance
Solution Approach 1:
The patent divides the plasmid construction process into modular segments: a backbone plasmid containing essential viral elements and interchangeable unit nucleic acids representing different functional components (promoters, genes, terminators). This segmentation allows systematic assembly of diverse plasmids from standardized parts, dramatically improving production efficiency while reducing construction complexity through modular design
Solution Approach 2:
The patent creates universal backbone plasmids that can accommodate multiple different unit nucleic acids through standardized restriction enzyme sites. This multi-functional backbone design enables a single plasmid scaffold to produce multiple virus-derived construct variants by simply changing the inserted unit nucleic acid modules, thereby enhancing productivity without increasing process complexity
2Reliability
If diverse nucleic acid sequences are introduced to improve plasmid performance, then production amount and purity can be enhanced, but the complexity of managing and selecting optimal plasmids increases
Solution Approach 1:
The patent applies local quality by creating unit nucleic acids with specific localized functions (promoters, coding sequences, terminators) that can be independently optimized and exchanged. Each functional element can be tailored to specific requirements while maintaining compatibility with the universal backbone, allowing performance enhancement without overwhelming management complexity through systematic functional modularity
Solution Approach 2:
The patent implements feedback mechanisms through selection markers and screening methods that allow identification and selection of optimal plasmid variants from the library. By incorporating selectable markers and established screening protocols, the system provides feedback on plasmid performance, enabling efficient selection of high-performing variants without requiring complex manual management of diverse sequences
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 method enables efficient production of virus-derived construct plasmids with enhanced performance, including improved production amounts and purity, by leveraging a library of plasmids with diverse nucleic acid sequences and functional elements.
Implementation Method 1
a step of treating the set of starting plasmids with a restriction enzyme and preparing a mixed solution containing cleaved alternative unit nucleic acid fragments
Implementation Method 2
a step of ligating the cleaved alternative unit nucleic acid fragments to form an integrated nucleic acid
Data Source
AI summary
In one aspect, the present disclosure provides a method for producing various virus-derived construct plasmids from starting plasmids (for example, virus-derived construct plasmids of the present disclosure). In one embodiment, a method for producing virus-derived construct plasmids of the present disclosure includes a step of preparing a set of starting plasmids containing at least of a part of nucleic acid sequences required to construct a virus-derived construct, the set of starting plasmids including a set of corresponding alternative unit nucleic acids, and the set of corresponding alternative unit nucleic acids including at least one set of corresponding alternative unit nucleic acids containing different nucleic acid sequences; a step of treating the set of starting plasmids with a restriction enzyme and preparing a mixed solution containing cleaved alternative unit nucleic acid fragments; a step of ligating the cleaved alternative unit nucleic acid fragments to form an integrated nucleic acid; and a step of bringing the integrated nucleic acid into contact with a transformed organism to form virus-derived construct plasmids.