Nano-assembly matrix for dynamic bait-prey interaction detection
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Solution Overview
Problem
Current methods for detecting interactions between bioactive molecules in living cells face challenges such as high background noise, false positives, low sensitivity, and limited target accessibility, often requiring artificial experimental settings that can lead to misleading results.
Innovation Solution
A method involving the formation of a nano-assembly matrix by interacting bioactive molecules, allowing for direct detection of bait-prey interactions through the analysis of co-localization on the matrix, which can be formed in vivo, providing high sensitivity and selectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional methods (affinity chromatography, yeast two-hybrid assay, etc.) are used to detect molecular interactions, then target identification can be performed, but the methods suffer from high background noise, false positives, and low sensitivity
Solution Approach 1:
The invention divides the detection system into distinct functional components: a bait molecule with known binding properties, a prey molecule with unknown interaction partners, and a readable output mechanism. This segmentation allows for systematic evaluation of interactions while reducing background noise through controlled variables.
Solution Approach 2:
The patent introduces a mediator molecule that facilitates the interaction between bait and prey, and provides a readable signal when interaction occurs. This intermediary mechanism enables detection without requiring direct observation of the bait-prey complex, thereby reducing false positives and improving measurement precision.
2Measurement precision
If in vitro binding conditions are used to analyze molecular interactions, then binding can be detected, but the artificial experimental milieu causes errors in experimental results
Solution Approach 1:
The system allows the molecular interaction to occur and be detected within the natural cellular environment without requiring artificial in vitro conditions. The bait and prey molecules interact in their physiological context, and the mediator provides a readable signal, enabling the system to serve itself within living cells.
Solution Approach 2:
The invention changes the experimental parameter from in vitro binding conditions to in vivo cellular environment. This parameter change allows molecular interactions to occur under physiological conditions, eliminating the harmful effects of artificial experimental milieus while maintaining detection capability through the mediator system.
3Productivity
If high-throughput cell-based screening is employed for target identification, then large compound libraries can be screened, but the daunting task of target identification remains
Solution Approach 1:
The bait molecule is pre-designed with known binding properties and specific interaction characteristics. This preliminary preparation of the bait allows for systematic screening of prey molecules in large libraries, reducing the complexity of target identification while maintaining high throughput capability.
Solution Approach 2:
The mediator molecule provides a readable signal (analogous to color changes) that indicates interaction between bait and prey. This readable output mechanism simplifies the detection process during high-throughput screening, reducing the complexity of target identification while enabling efficient screening of large compound libraries.
4Measurement precision
If protein expression is used in detection systems, then molecular interactions can be analyzed, but inappropriate folding after protein expression occurs
Solution Approach 1:
The mediator molecule serves as an intermediary that facilitates interaction detection without requiring the bait and prey proteins to be properly folded or stable. The mediator system can detect interactions even when protein expression results in misfolding, thereby maintaining measurement precision while accommodating protein composition instability.
Data Source
AI summary
The present invention relates to methods for dynamically detecting the interactions between various materials including bioactive molecules and for detecting target molecules. More specifically, the present invention relates to a method for dynamically detecting bait-prey interactions and a method for easily detecting target molecules which blocks or activates the interactions, the method comprising: allowing a material capable of forming a nano-assembly matrix, a bait and a prey to interact with each other, and analyzing whether a nano-assembly matrix is formed by the interaction between the bait and the prey in vitro or in vivo; or allowing a material capable of forming a nano-assembly matrix, a bait and a prey to interact with each other, inducing the formation of a nano-assembly matrix by a mediator (regulator) material in vitro or in vivo, and then analyzing whether the prey and the bait co-localizes on the nano-assembly matrix.